inability
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B2 noun /ˌɪnəˈbɪləti/

inability

无能
Meaning
the state of being unable to do something
Example
His inability to make decisions affected his career.
他无法做决定，这影响了他的职业生涯。
B2 adjective /ɪˈmens/

Immense

巨大的; 庞大的; 无限大的
Meaning
extremely large or great; huge
Example
The immense mountain range stretched across the horizon.
那座巨大的山脉横跨了地平线。
B2 adjective /ɪˈrɪˌspɑn.sə.bəl/

Irresponsible

不负责任
Meaning
lacking a sense of responsibility; careless
Example
It was irresponsible of him to leave without telling anyone.
他在没有告诉任何人就离开，这是不负责任的行为。
B2 adjective /ˌɪntəˈpɜːsənl/

interpersonal

人际
Meaning
Relating to relationships or communication between people.
Example
He has excellent interpersonal skills and gets along well with others.
他拥有出色的人际交往技巧，并且能与他人和谐相处。
B2 noun /ɪnˈspɛktər/

inspector

检查员
Meaning
An official employed to ensure regulations are obeyed or standards are met.
Example
The inspector carefully checked the restaurant's kitchen for hygiene standards.
检查员仔细检查了餐厅的厨房是否符合卫生标准。
B2 adjective /ɪnˈfɔːrmətɪv/

Informative

有教育意义的
Meaning
giving or providing useful information; educational; instructive
Example
The documentary was very informative and educational.
这部纪录片信息量很大，具有教育意义。
B2 verb /ˈɪntɪɡreɪt/

integrate

整合
Meaning
To combine or bring together into a unified whole.
Example
The new system integrates data from multiple sources.
新系统整合来自多个来源的数据。
B2 adjective /ˈaɪ.dəl/

Idle

懒惰的; 不活跃的; 没有工作的
Meaning
lazy; inactive; not working or being used
Example
The factory workers were idle during the strike.
工厂工人在罢工期间闲置。
B2 verb /ɪnˈtɛnsɪfaɪ/

intensify

加强
Meaning
To make something stronger, more extreme, or more forceful.
Example
The storm is expected to intensify overnight.
预计风暴将在一夜之间加剧。
B2 verb /ˈaɪ.sə.leɪt/

isolate

孤立
Meaning
To separate something or someone from others.
Example
Doctors tried to isolate the patient to prevent the spread of infection.
医生试图将病人隔离，以防止感染传播。
B2 noun ˈɪnər strɛŋkθ

inner strength

内在力量
Meaning
Mental or spiritual power that helps a person cope with difficulties.
Example
Community service fosters inner strength in individuals.
社区服务促进了个人的内在力量。
B2 noun ˈɪn.deks

index

索引
Meaning
An alphabetical list of names, subjects, etc. with references to the places where they occur, typically found at the end of a book; a sign or measure of something.
Example
An index organizes critical data.
索引组织重要数据。
B2 noun, verb /ˈɪnstɪˌtjuːt/

institute

学院
Meaning
as a noun, an organization founded for a specific purpose; as a verb, to establish or initiate
Example
The university decided to institute new rules for the library.
大学决定为图书馆制定新规则。
B2 noun /ˈɪnfənt/

infant

婴儿
Meaning
A very young child or baby.
Example
The infant was sleeping peacefully in the cradle.
婴儿在摇篮中安静地睡着。
B2 noun /ɪnˈsɪstəns/

insistence

坚持
Meaning
the act of demanding something firmly or repeatedly
Example
At his insistence, we stayed longer.
在他的坚持下，我们待得更久。
B2 adjective ɪˈmɜː.sɪv

immersive

沉浸式
Meaning
Providing, involving, or characterized by deep absorption or immersion in something.
Example
Virtual reality creates an immersive learning environment.
虚拟现实创造了一个沉浸式学习环境。
B2 adjective /ɪnˈdɪf.ər.ənt/

indifferent

冷漠
Meaning
having no particular interest or concern; not caring one way or another
Example
She was indifferent to the outcome of the match.
她对比赛的结果漠不关心。
B2 noun /ɪsˈlɑːm/

islam

伊斯兰教
Meaning
the religion founded by the Prophet Muhammad, based on belief in one God (Allah)
Example
Islam emphasizes peace, justice, and compassion.
伊斯兰教强调和平、公正与慈悲。
B2 verb /ɪnˈfɛkt/

infect

传染
Meaning
To contaminate with a disease-causing organism.
Example
The virus can infect healthy people quickly.
病毒可以迅速传染健康的人。
B2 noun /ɪnˈtɒlərəns/

intolerance

不容忍
Meaning
unwillingness to accept or endure beliefs, behaviors, or conditions different from one's own
Example
The leader was criticized for his intolerance toward other religions.
领导人因对其他宗教的不容忍而受到批评。
B2 noun ɪˈlɪtərəsi

illiteracy

文盲
Meaning
The inability to read and write; lack of education or knowledge in a particular area.
Example
Illiteracy often leads to poverty and unemployment.
文盲常常导致贫困和失业。
B2 verb /ˈɪmɪɡreɪt/

immigrate

移民
Meaning
to come to live permanently in a foreign country
Example
He immigrated to Canada five years ago.
他五年前移民到了加拿大。
B2 noun /ɪnˈkluːʒən/

inclusion

包容
Meaning
the action or state of including or being included within a group or structure
Example
Diversity and inclusion are key values in modern workplaces.
多样性和包容性是现代工作场所的关键价值观。
B2 noun /ɪnˈtɛnsəti/

intensity

强度
Meaning
The quality of being extreme, strong, or forceful in degree.
Example
The intensity of the storm frightened the villagers.
风暴的强度吓坏了村民。
B2 verb /ɪmˈprɪzən/

imprison

囚禁
Meaning
to put someone in prison; to confine or restrict someone's freedom
Example
The judge imprisoned the criminal for five years.
法官把罪犯囚禁了五年。
B2 noun ɪnˈfleɪʃən

inflation

通货膨胀
Meaning
A general increase in prices and fall in the purchasing value of money.
Example
Inflation erodes the purchasing power of consumers.
通货膨胀侵蚀了消费者的购买力。
B2 adjective /ˌɪnfluˈenʃəl/

Influential

有影响力的; 强大的
Meaning
having great influence on someone or something; powerful; persuasive
Example
She is an influential leader in the community.
她是社区中的一位有影响力的领导者。
B2 adjective /ˈɪɡ.nər.ənt/

Ignorant

无知
Meaning
lacking knowledge or awareness; uninformed
Example
She was ignorant about the new technology trends.
她对新技术趋势一无所知。
B2 noun /ɪnˈhæbɪtənt/

inhabitant

居民
Meaning
a person or animal that lives in a particular place
Example
The inhabitants of the village rely on farming for their livelihood.
村庄的居民依靠农业为生。
B2 noun /ˌɪmɪˈɡreɪʃən/

immigration

移民
Meaning
the action of coming to live permanently in a foreign country
Example
Immigration policies vary from country to country.
移民政策因国家而异。
B2 adjective /ɪˈlɪt.ər.ət/

Illiterate

文盲; 不识字的; 无知的
Meaning
unable to read or write; lacking education
Example
The program aims to help illiterate adults learn to read and write.
该计划旨在帮助文盲成年人学习读写。
B2 adjective /ˌɪn.trəˈdʌk.tər.i/

introductory

介绍性
Meaning
Serving as an introduction; preliminary or preparatory.
Example
The professor gave an introductory lecture on economics.
教授做了关于经济学的介绍性讲座。
B2 noun ˌɪntəˈlektʃuəlz

intellectuals

知识分子
Meaning
People possessing a highly developed intellect; scholars or academics.
Example
Intellectuals protested against the dominance.
知识分子反对霸权。
B2 noun /ˌaɪ.səˈleɪ.ʃən/

Isolation

隔离
Meaning
the process or fact of isolating or being isolated; separation from other people or things
Example
The patient was kept in isolation to prevent the spread of the infectious disease.
病人被隔离，以防止传染病的传播。
B2 adjective /aɪˈdentɪkəl/

Identical

相同的; 完全一样的
Meaning
exactly the same; not different in any way
Example
The twins look completely identical to each other.
这对双胞胎看起来完全一样。
B2 adverb /ɪmˈpɒlɪtli/

impolitely

不礼貌地
Meaning
in a rude or discourteous manner; without showing respect or proper manners
Example
He spoke impolitely to the waiter despite the polite service.
尽管服务很好，他还是不礼貌地对服务员说话。
B2 adjective ˈɪn.tɪ.ɡreɪ.tɪd

integrated

集成
Meaning
Combining or coordinating separate elements so as to provide a harmonious, interrelated whole.
Example
Integrated systems optimize efficiency.
集成系统优化效率。
B2 noun /ˈaɪrəni/

irony

讽刺
Meaning
a situation that is strange or amusing because it is the opposite of what is expected; the use of words to convey the opposite meaning
Example
The irony of the situation was that the winner forgot his own prize.
这件事的讽刺在于，获胜者忘记了自己的奖品。
B2 noun ˌɪn.əˈveɪ.ʃən

innovation

创新
Meaning
The action or process of innovating; a new method, idea, product, etc.
Example
Innovation drives solutions to global challenges.
创新推动了全球挑战的解决方案。
B2 noun ɪnˌdʌstrɪəlaɪˈzeɪʃən

industrialization

工业化
Meaning
The development of industries in a country or region on a wide scale.
Example
Industrialization changed the global economy dramatically.
工业化显著改变了全球经济。
B2 noun /ɪnˈkwaɪəri/ or /ˈɪnkwəri/

inquiry

调查 / 查询
Meaning
An act of asking for information; an investigation into something.
Example
The committee launched an inquiry into the financial irregularities.
委员会启动了对金融不规范行为的调查。
B2 noun /ˈɪdɪət/

idiot

白痴
Meaning
a person who acts in a way that is considered very stupid or foolish
Example
He acted like an idiot at the party last night.
他昨晚在派对上像个白痴一样表现。
B2 verb /ˈɪr.ɪ.teɪt/

irritate

刺激
Meaning
To make someone annoyed or angry; to cause discomfort or inflammation.
Example
Rubbing your eyes can irritate them.
摩擦眼睛可能会刺激它们。
B2 noun /ˈɪn.flu.ən.sər/

Influencer

网红, 社交媒体影响者
Meaning
A person with the ability to influence potential buyers of a product or service by promoting or recommending the items on social media.
Example
Social media influencers shape consumer preferences.
社交媒体上的网红塑造了消费者的偏好。
B2 noun /ˈɪm.pʌls/

Impulse

冲动; 突然的欲望
Meaning
a sudden strong and unreflective urge or desire to act; a driving force or motivation
Example
She bought the expensive dress on impulse and later regretted the purchase.
她冲动购买了那件昂贵的衣服，后来对这笔购买感到后悔。
B2 adjective /ˌɪntərˈmiːdiət/

intermediate

中级
Meaning
Coming between two things in time, place, or order; in the middle level or stage.
Example
She is taking an intermediate-level French course.
她正在上一个中级法语课程。
B2 noun /ˌɪntərˈfɪərəns/

interference

干扰
Meaning
the action of interfering with something
Example
The radio signal was disrupted due to interference from nearby electronics.
由于附近电子设备的干扰，无线电信号受到了干扰。
B2 adjective /ɪnˈfekʃəs/

infectious

传染性的; 有感染力的
Meaning
capable of causing infection or disease; spreading easily from one person to another; able to spread feelings or attitudes such as enthusiasm
Example
Her infectious laughter made everyone in the room smile.
她富有感染力的笑声让大家都笑了。
B2 adjective /ɪnˈkluːsɪv/

inclusive

包容的
Meaning
Including all the services, facilities, or items normally expected or required; not excluding any section of society or any party involved.
Example
Inclusive growth benefits all sections of society.
包容性增长惠及社会的所有阶层。
B2 verb /ɪmˈpoʊzd/

imposed

强加
Meaning
forced something to be accepted or put in place
Example
The government imposed new regulations on the industry.
政府对该行业实施了新规章。
B2 adjective /ɪnˈædɪkwət/

inadequate

不充分
Meaning
Not sufficient or good enough.
Example
The funding was inadequate to complete the project.
资金不足以完成项目。
B2 noun, verb /ɪntʃ/

inch

英寸 / 缓慢移动
Meaning
A unit of length equal to 2.54 centimeters; or to move slowly and carefully in small amounts.
Example
She inched closer to the edge of the stage.
她慢慢靠近舞台的边缘。
B2 adjective /ˌɪnsəˈfɪʃənt/

insufficient

不足的
Meaning
Not enough; inadequate.
Example
His explanation was insufficient to clear the confusion.
他的解释不足以清除混乱。
B2 verb /ɪnˈdʒɛkt/

inject

注射
Meaning
To introduce a substance, especially a drug, into the body using a needle.
Example
The nurse will inject the vaccine into the patient's arm.
护士将疫苗注射到病人的手臂中。
B2 verb /ɪnˈfɜːr/

infer

Meaning
to conclude or deduce something from evidence and reasoning rather than from explicit statements
Example
From his silence, I inferred that he was not happy with the decision.
B2 adjective /ˌɪnsɪɡˈnɪfɪkənt/

insignificant

微不足道
Meaning
Too small or unimportant to be worth considering.
Example
The cost was so insignificant that nobody noticed it.
费用微不足道，以至于没有人注意到。
B2 adjective /ɪmˈpɜːrfɪkt/

imperfect

不完美
Meaning
Not perfect; having faults or flaws.
Example
The painting was beautiful despite being imperfect.
这幅画很美，尽管它不完美。
B2 adjective /ˈɪn.tɪ.mət/

Intimate

亲密的; 私人的; 详细的知识
Meaning
close in friendship; private and personal; detailed knowledge
Example
They have an intimate friendship that has lasted for decades.
他们有一段持续数十年的亲密友谊。
B2 adverb /ɪmˈpɔːtəntli/

importantly

重要地
Meaning
in a way that is of great significance or value
Example
Importantly, the report highlights the need for immediate action.
重要地，报告突出了立即采取行动的必要性。
B2 noun /ɪnˈveɪʒən/

invasion

入侵
Meaning
An instance of invading a country, region, or personal space with armed force or unwelcome presence.
Example
The army prepared for the possibility of an invasion.
军队为可能的入侵做了准备。
B2 noun /ɪnˈfek.ʃən/

Infection

感染
Meaning
the process of infecting or the state of being infected; a disease caused by germs
Example
The doctor prescribed antibiotics to treat the bacterial infection in her throat.
医生开了抗生素来治疗她喉咙的细菌感染。
B2 verb /ɪnˈflɪkt/

inflict

施加
Meaning
to cause something unpleasant or painful to be suffered by someone or something
Example
The storm inflicted considerable damage to the city.
风暴对城市造成了相当大的破坏。
B2 adjective /ˌɪnəˈproʊpriət/

inappropriate

不适当
Meaning
not suitable or proper in the circumstances
Example
It was inappropriate to talk loudly in the library.
在图书馆大声说话是不适当的。
B2 verb ˈɪmplɪment

implement

实施
Meaning
To put a decision or plan into effect; to execute or apply.
Example
Implementing educational policies is essential for progress.
实施教育政策对进步至关重要。
B2 verb /ˌɪntərˈviːn/

intervene

介入
Meaning
To come between people, groups, or events, often to prevent conflict or improve a situation.
Example
The teacher had to intervene to stop the fight between the students.
老师不得不介入，阻止学生之间的打架。
B2 verb /ɪnˈveɪd/

invade

入侵
Meaning
to enter a place or country forcefully, especially as an enemy
Example
The army invaded the neighboring country.
军队入侵了邻国。
B2 adjective ɪnˈev.ɪ.tə.bəl

inevitable

不可避免的
Meaning
Certain to happen; unavoidable.
Example
Death is an inevitable part of life.
死亡是生命中不可避免的一部分。
B2 verb /ɪnˈʃʊər/

insure

投保
Meaning
to provide insurance; to make certain
Example
I need to insure my new car.
我需要为我的新车投保。
B2 verb /ɪnˈtɜːrprət/

interpret

Meaning
to explain the meaning of something; to translate orally
Example
She had to interpret the speech for the foreign guests.
B2 noun ˌɪmplɪmenˈteɪʃən

implementation

实施
Meaning
The process of putting a decision or plan into effect; execution.
Example
Proper implementation of policies is crucial.
政策的正确实施至关重要。
B2 adjective /ˈɪmɪnənt/

imminent

即将
Meaning
About to happen; likely to occur very soon.
Example
Dark clouds signaled that a storm was imminent.
乌云预示着暴风雨即将来临。
B2 noun /ɪnˈfɪnɪti/

infinity

无限
Meaning
A concept describing something without any limit or end.
Example
The universe seems to stretch into infinity.
宇宙似乎无限延伸。
B2 noun /ɪmˈpɒlɪtnəs/

impoliteness

不礼貌
Meaning
lack of good manners or courtesy; rude behavior
Example
His impoliteness towards the guests shocked everyone.
他对客人的不礼貌让所有人都感到震惊。
B2 noun, verb /ˌɪnkənˈviːniəns/

inconvenience

不便
Meaning
trouble or difficulty caused to someone; to cause trouble or difficulty to someone
Example
We apologize for any inconvenience caused by the delay.
对于延误造成的任何不便，我们深表歉意。
B2 adjective, noun /ˌɪn.təlˈɛk.tʃu.əl/

intellectual

智力的
Meaning
Relating to the intellect; a person who engages in critical thinking and study.
Example
She enjoys intellectual discussions about philosophy.
她喜欢关于哲学的智力讨论。
B2 noun /ɪnˈtɪəriər/

interior

内部
Meaning
the inside part of something; inner area of a place or object
Example
The interior of the hotel was beautifully decorated.
酒店的内部装饰非常美丽。
B2 adjective /ˌɪnkənˈviːniənt/

Inconvenient

不便的; 难堪的; 麻烦的
Meaning
causing trouble, difficulties, or discomfort; awkward; troublesome
Example
The broken elevator made it inconvenient to reach the top floor.
坏掉的电梯使得到达顶楼变得不方便。
B2 adjective /ˌɪrɪˈzɪstəbəl/

Irresistible

不可抗拒的
Meaning
too attractive and tempting to be resisted; impossible to resist
Example
The chocolate cake was absolutely irresistible.
这块巧克力蛋糕简直让人无法抗拒。
B2 noun /ˈaɪ.dəl/

Idol

偶像; 受人崇拜的人
Meaning
an image or representation of a god used as an object of worship; a person who is greatly admired
Example
The singer became a teenage idol after her hit song topped the charts worldwide.
这位歌手在她的热门歌曲登顶全球排行榜后成为了青少年偶像。
B2 verb /ɪnˈkwaɪər/

inquire

询问
Meaning
to ask; to investigate
Example
She inquired about the job opening.
她询问了职位空缺。
B2 noun /ˌɪm.ɪˈteɪ.ʃən/

Imitation

模仿; 复制; 仿制品
Meaning
the action of using someone or something as a model; a copy of something original
Example
His imitation of the famous actor was so good that everyone burst into laughter.
他的模仿非常成功，大家都笑了出来。
B2 noun /ɪˈluː.ʒən/

Illusion

幻觉
Meaning
a thing that is or is likely to be wrongly perceived or interpreted; a false idea or belief
Example
The magician created a spectacular illusion that made the elephant appear to vanish.
魔术师创造了一个壮观的幻觉，使得大象看起来像消失了一样。
B2 adjective /ɪˈmɒrəl/

immoral

不道德的
Meaning
Not conforming to accepted standards of morality; unethical or wicked.
Example
He was fired for his immoral behavior.
他因不道德的行为被解雇了。
B2 adverb /ɪnˈɛvɪtəbli/

inevitably

不可避免地
Meaning
in a way that cannot be avoided or prevented
Example
Inevitably, the team faced challenges during the project.
不可避免地，团队在项目过程中遇到了挑战。
B2 adjective /ˈaɪsi/

Icy

冰冷的; 极冷的; 敌对的
Meaning
extremely cold; covered with ice; unfriendly or hostile
Example
The icy wind made everyone shiver.
冰冷的风让每个人都颤抖。
B2 noun /ɪnˈsen.tɪv/

Incentive

激励; 鼓励
Meaning
a thing that motivates or encourages someone to do something; a reward or penalty that influences behavior
Example
The company offered a cash incentive to employees who exceeded their sales targets.
公司向超额完成销售目标的员工提供了现金激励。
B2 verb /ɪnˈsʌlt/

insult

侮辱
Meaning
to speak or act in a way that hurts someone's feelings or shows disrespect
Example
He felt insulted by her rude comments.
他因她的粗鲁评论而感到被侮辱。
B2 noun /ˈɪnˌteɪk/

intake

摄入
Meaning
the process of taking something in, especially food or drink
Example
He monitored his daily intake of calories to maintain a healthy diet.
他监控着自己每天的卡路里摄入量，以保持健康的饮食。
B2 verb /ɪmˈpoʊz/

impose

强加
Meaning
to force someone to accept something; to establish or apply by authority
Example
The government imposed new taxes on luxury goods.
政府对奢侈品征收了新税。
B2 adjective /aɪˈrɒnɪkəl/

ironical

讽刺的
Meaning
expressing irony; having the nature of irony
Example
Her ironical tone made everyone uncomfortable.
她的讽刺语气让每个人都感到不舒服。
B2 noun ˌɪn.fləˈmeɪ.ʃən

inflammation

炎症
Meaning
A localized physical condition in which part of the body becomes reddened, swollen, hot, and often painful.
Example
Chronic inflammation can lead to severe diseases.
慢性炎症可能导致严重的疾病。
B2 noun /aɪˌdɛntɪfɪˈkeɪʃən/

identification

身份识别
Meaning
the process of recognizing or proving who or what someone or something is
Example
You need proper identification to enter the building.
您需要适当的身份证明才能进入大楼。
B2 adjective ɪnˈdɪdʒɪnəs

indigenous

本土的
Meaning
Originating or occurring naturally in a particular place; native.
Example
Indigenous plants are well adapted to the local environment.
本土植物很好地适应了当地环境。
B2 verb /ˈɪmɪteɪt/

imitate

模仿
Meaning
to copy the behavior or manner of someone or something
Example
Children often imitate their parents' behavior.
孩子们经常模仿父母的行为。
B2 adjective /ɪnˈtɛnsɪv/

intensive

强化
Meaning
Involving a lot of effort, energy, or concentration in a short period of time.
Example
She attended an intensive English course before moving abroad.
她在出国之前参加了一个强化的英语课程。
B2 adjective /ˈɪnfɪnɪt/

infinite

无限
Meaning
limitless or endless in space, extent, or number
Example
The universe is often described as infinite.
宇宙常被描述为无限的。
B2 noun ˌɪn.təˈven.ʃən

intervention

干预
Meaning
The action or process of intervening; involvement in a situation to improve or help it.
Example
The intervention of the UN was crucial in resolving the conflict.
联合国的干预对解决冲突至关重要。
B2 noun /ˈɪntərfeɪs/

interface

界面
Meaning
a point where two systems, subjects, or organizations meet and interact
Example
The user interface is designed to be intuitive and user-friendly.
用户界面被设计为直观且用户友好。
B2 verb /ˈɪnəveɪt/

innovate

创新
Meaning
To introduce new methods, ideas, or products.
Example
The company must innovate to stay ahead of its competitors.
公司必须创新，以保持领先于竞争对手。
B2 adjective ˌɪn.təˈræk.tɪv

interactive

互动的
Meaning
Allowing a two-way flow of information between it and a user, responding to the user's input.
Example
Interactive learning keeps students engaged in lessons.
互动学习保持学生在课堂中的参与感。
B2 noun /ˈɪmɪɡrənt/

immigrant

移民
Meaning
a person who comes to live permanently in a foreign country
Example
The city has welcomed many new immigrants this year.
今年这座城市接纳了许多新的移民。
B2 noun /ɪmˈpeɪʃəns/

impatience

不耐烦
Meaning
The state of being quickly irritated or unable to wait calmly.
Example
His impatience grew as the meeting dragged on.
随着会议的拖延，他的不耐烦愈加明显。
B2 adjective + noun aɪˈdiːəl ɪnˈvaɪrənmənt

ideal environment

理想环境
Meaning
Perfect or most suitable conditions for growth or development
Example
Winter creates an ideal environment for vegetable growth.
冬天为蔬菜生长创造了理想的环境。
B2 noun /ˌɪntərˈsɛkʃən/

intersection

交叉口
Meaning
a point where two or more things intersect, especially a road or path
Example
The intersection of Main Street and 5th Avenue is always busy.
主街和第五大道的交叉口总是很忙。
B2 adjective ˌɪnɪˈfɛktɪv

ineffective

无效
Meaning
Not producing any significant or desired effect; not achieving the intended result.
Example
Rote learning often proves to be ineffective.
死记硬背往往是无效的。
B2 noun /ɪnˈvɛstɪˌɡeɪtər/

investigator

幸福
Meaning
a person who carries out a formal inquiry or investigation
Example
The investigator gathered evidence from the crime scene.
当她获得奖项时，她无法掩饰自己的幸福。
B2 adjective /ɪnˈtækt/

intact

完整
Meaning
Remaining whole, complete, and undamaged.
Example
Despite the storm, the old house remained intact.
尽管风暴，老房子依然保持完整。
B2 adverb /aɪˈrɒnɪkli/

ironically

具有讽刺意味地
Meaning
in a way that is contrary to what is expected or intended
Example
Ironically, the fire station burned down.
具有讽刺意味地，消防站着火了。
B2 noun /ɪnˈventər/

inventor

发明家
Meaning
a person who creates or designs something new, especially a device, method, or process
Example
The inventor patented her new medical device.
这位发明家为她的新医疗设备申请了专利。
B2 noun ɪnˈsɛntɪvz

incentives

激励
Meaning
Things that motivate or encourage one to do something.
Example
Tax incentives are used to encourage investment in renewable energy.
税收激励用于鼓励对可再生能源的投资。
B2 adjective /ˈɪmpæktfʊl/

impactful

有影响力的
Meaning
Having a major impact or effect; powerful and forceful.
Example
Her impactful speech moved the audience to take action.
她有影响力的演讲促使观众采取行动。
B2 noun /ˈɪn.vɔɪs/

Invoice

发票
Meaning
a list of goods sent or services provided, with a statement of the sum due for these
Example
The company sent an invoice for the office supplies delivered last week.
公司发送了上周交付的办公用品的发票。
B2 verb /ɪmˈplaɪ/

imply

暗示
Meaning
To suggest something without directly stating it.
Example
Her tone seemed to imply that she was upset.
她的语气似乎暗示她很不高兴。
B2 adjective /ɪˈreɡjələr/

irregular

不规则的
Meaning
not even or consistent in shape, pattern, time, or behavior; not following normal rules
Example
His attendance at work has been irregular this month.
他这个月上班出勤不规则。
B2 verb /ɪnˈdjuːs/

induce

引起
Meaning
to cause or persuade someone to do something; to bring about a result
Example
The doctor induced sleep with a mild sedative.
医生用轻度镇静剂引起了睡眠。
B2 noun /ˈɪnˌsaɪt/

insight

洞察力
Meaning
The ability to understand the true nature of something; deep understanding.
Example
Her insight into human behavior made her a successful psychologist.
她对人类行为的洞察力使她成为一位成功的心理学家。
B2 noun /ˌɪmpərˈfɛkʃən/

imperfection

不完美
Meaning
a flaw, defect, or weakness; the state of being imperfect
Example
She accepted her imperfection as part of being human.
她接受了自己的不完美，作为人性的一部分。
B2 adjective /ˈɪrɪteɪtɪd/

irritated

恼火的
Meaning
feeling annoyed or impatient; having inflamed or sore physical condition
Example
She felt irritated by the constant noise outside her window.
窗外持续的噪音让她感到恼火。
B2 noun /ˌɪnsɪˈkjʊərɪti/

insecurity

不安全感
Meaning
lack of confidence or assurance; a state of uncertainty or vulnerability
Example
Her insecurity made her doubt her abilities despite her experience.
她的不安全感让她怀疑自己的能力。
B2 noun /ɪnˈdʒɛkʃən/

injection

Meaning
the act of introducing a substance into the body through a needle
Example
The nurse gave me an injection to prevent the infection.
B2 noun /ˌɪntəˈrʌpʃən/

interruption

中断
Meaning
the act of stopping or breaking the continuity of something; a pause caused by an external action
Example
The meeting was delayed due to an unexpected interruption.
会议因为一次意外的中断而被推迟。