intergenerational
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C1 adjective ˌɪn.tə.dʒen.əˈreɪ.ʃən.əl

intergenerational

代际的，存在于不同代际之间
Meaning
Existing or occurring between different generations of a family.
Example
Intergenerational wisdom ensures cultural continuity.
代际智慧确保文化的延续。
C2 noun /ˈɪrɪɡənt/

irrigant

灌溉液体
Meaning
A liquid used for irrigation, especially in medical or agricultural contexts.
Example
The doctor used a sterile irrigant during the procedure.
医生在手术中使用了无菌灌溉液。
C1 adjective /ˌɪnkəmˈpætəbl/

incompatible

不兼容
Meaning
Not able to exist or work together without conflict.
Example
Their personalities were completely incompatible.
他们的个性完全不兼容。
B2 verb /ɪtʃ/

itch

瘙痒
Meaning
to feel an urge to scratch; to have a restless desire
Example
My skin itches from the mosquito bites.
我的皮肤因蚊子叮咬而发痒。
C1 noun /ɪmˈpɜːrtɪnəns/

impertinence

无礼
Meaning
lack of respect; rudeness
Example
The teacher was shocked by the student's impertinence.
老师对学生的无礼感到震惊。
C2 adjective /ɪˈrɛzəluːt/

irresolute

优柔寡断
Meaning
uncertain or indecisive; lacking determination
Example
He stood irresolute at the crossroads, unsure which path to take.
他在十字路口犹豫不决，不知道走哪条路。
C1 adjective /ɪmˈpɜːrtɪnənt/

impertinent

无礼的
Meaning
rude and showing a lack of respect
Example
It was impertinent of him to question the manager's decision.
他质疑经理的决定是无礼的。
B1 adjective /ˌɪnɪkˈspɛnsɪv/

Inexpensive

便宜的; 经济实惠的; 负担得起的
Meaning
not costing a lot of money; affordable; budget-friendly
Example
This restaurant offers delicious and inexpensive meals for students.
这家餐厅为学生提供美味且便宜的餐点。
C2 adjective /ɪˈmɒdɪst/

immodest

傲慢 / 不得体
Meaning
lacking humility or decency; excessively proud or improper
Example
His immodest remarks offended the audience.
他的傲慢言辞冒犯了观众。
C1 adjective /ɪnˈdʒʊəriəs/

injurious

有害的
Meaning
Causing or likely to cause harm or damage.
Example
Smoking is injurious to health.
吸烟对健康有害。
C1 verb /ɪnˈkrɪmɪˌneɪt/

incriminate

使犯罪
Meaning
to make someone appear guilty of a crime or wrongdoing
Example
The new evidence could incriminate the suspect in the robbery case.
新证据可能会让嫌疑犯在抢劫案件中使犯罪。
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。
C1 noun /ˌɪnkoʊˈhɪrəns/

incoherence

不一致
Meaning
The quality of being unclear, confused, or lacking logical connection.
Example
His speech was full of incoherence and difficult to follow.
他的演讲充满了不一致，难以跟随。
C2 noun /ˈɪn.dɪ.dʒəns/

indigence

贫困
Meaning
a state of extreme poverty or destitution
Example
The charity was founded to help people living in indigence.
这个慈善组织成立是为了帮助生活在贫困中的人们。
B1 verb /ɪnˈvɛs.tɪ.ɡeɪt/

investigate

调查
Meaning
to carry out a systematic inquiry to discover facts or information
Example
The police will investigate the incident thoroughly.
警方将彻底调查此事件。
B1 noun /ɪˌmædʒ.ɪˈneɪ.ʃən/

Imagination

想象; 创造性思维
Meaning
the faculty or action of forming new ideas or images not present to the senses; creative thinking
Example
Children's imagination allows them to turn a cardboard box into a spaceship or castle.
孩子们的想象力让他们能把一个纸箱变成太空船或城堡。
A1 noun /ˈaɪs kriːm/

Ice-cream

冰淇淋
Meaning
a frozen sweet dessert made from dairy products, usually served cold
Example
Children love to eat ice-cream on hot summer days.
孩子们喜欢在炎热的夏季日子里吃冰淇淋。
A1 noun /aɪs/

Ice

冰
Meaning
water that has frozen and become solid
Example
The ice in my drink melted quickly in the hot weather.
我饮料中的冰在热天气下很快融化了。
C2 noun /aɪˈkɒnəklæst/

iconoclast

破坏偶像者
Meaning
A person who attacks or criticizes cherished beliefs, traditions, or institutions.
Example
He was known as an iconoclast who challenged old traditions.
他被认为是一个破坏偶像者，挑战旧传统。
C2 noun /ɪmˌpɜːrtərbəˈbɪləti/

imperturbability

安定性
Meaning
The quality of being calm and not easily disturbed or upset.
Example
Her imperturbability during the crisis impressed everyone.
她在危机中的安定性给所有人留下了深刻的印象。
B2 adjective, noun /ɪzˈreɪli/

israeli

以色列的
Meaning
relating to Israel or its people; a person from Israel
Example
She works for an Israeli company.
她在一家以色列公司工作。
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。
C2 noun /ˌɪn.təˈvɛn.ʃə.nɪ.zəm/

interventionism

干预主义
Meaning
Government policy of active involvement in economic affairs.
Example
The central bank's interventionism helped stabilize inflation.
中央银行的干预主义帮助稳定了通货膨胀。
C1 noun /ˈɪnˌmeɪt/

inmate

囚犯
Meaning
a person confined to an institution such as a prison or hospital
Example
The prison has over a thousand inmates.
监狱里有超过一千名囚犯。
C1 noun /ˈɪntrɪkəsi/

intricacy

复杂性
Meaning
the quality of being very detailed or complicated
Example
The intricacy of the design impressed everyone.
设计的复杂性给每个人留下了深刻印象。
C2 adjective /ˌɪntərˈniːsaɪn/

internecine

内部冲突
Meaning
Relating to conflict within a group, often causing mutual destruction.
Example
The internecine conflict weakened the organization from within.
内部冲突削弱了组织内部的力量
C1 adjective /ˌɪnɪkˈskjuːzəbl/

inexcusable

不可原谅的
Meaning
Too bad to be justified or overlooked; unforgivable.
Example
His rude behavior was inexcusable.
他的粗鲁行为是不可原谅的。
B1 adjective /ˈɪrɪteɪtɪŋ/

irritating

烦人的
Meaning
causing annoyance, impatience, or mild anger
Example
The constant noise from the street is extremely irritating.
街道上传来的持续噪音非常烦人。
C1 noun ˈɪm.pɪ.təs

impetus

推动力
Meaning
The force or motivation that drives something forward; momentum.
Example
The new policy provided an impetus for economic growth.
新政策为经济增长提供了推动力。
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。
C1 adjective /ˌɪn.səˈbɔːr.dɪ.nət/

insubordinate

不服从
Meaning
Defiant of authority; disobedient to orders.
Example
The insubordinate employee refused to follow the manager's instructions.
不服从的员工拒绝遵循经理的指示。
C1 adjective ˌɪdiəsɪnˈkrætɪk

idiosyncratic

独特且个性化
Meaning
Relating to idiosyncrasy; peculiar or individual.
Example
His idiosyncratic behavior set him apart from his colleagues.
他的独特行为使他与同事们区别开来。
C1 adjective /ɪnˈdʌstriəs/

industrious

勤奋的
Meaning
Hardworking and diligent in one's duties.
Example
She is an industrious student who always completes her assignments on time.
她是一个勤奋的学生，总是按时完成她的作业。
A2 preposition /ɪnˈkluːdɪŋ/

including

包括
Meaning
used to show that someone or something is part of a larger group
Example
Many people attended the event, including students and teachers.
许多人参加了这个活动，包括学生和教师。
B1 adjective /ɪmˈpres.ɪv/

Impressive

令人印象深刻的
Meaning
striking; remarkable; having the ability to impress
Example
Her impressive performance earned her a standing ovation.
她出色的表演赢得了全场起立鼓掌。
B1 adjective /ɪnˈvɑːlvd/

involved

卷入的
Meaning
complicated or engaged in something
Example
She was deeply involved in community service.
她深深地卷入了社区服务。
C1 adjective ɪnˈsaɪ.sɪv

incisive

尖锐
Meaning
Intelligently analytical and clear-thinking; showing clear thought and good understanding of what is important.
Example
His incisive comments revealed the core issues.
他的尖锐评论揭示了核心问题。
C1 adjective ˈɪn.lənd

Inland

内陆
Meaning
Situated in the interior of a country; away from the coast.
Example
Inland transport boosts local trade.
内陆交通促进了当地的贸易。
C2 adjective /ɪnˈtɛmpərət/

intemperate

失控的
Meaning
Lacking self-control; immoderate, especially in indulgence.
Example
The politician's intemperate remarks caused controversy.
政治家的失控言论引发了争议。
C2 verb /ɪnˈɡrɑːft/

ingraft

根植
Meaning
To implant or fix deeply, often used in the sense of grafting an idea or quality.
Example
The teacher tried to ingraft good manners in the students.
老师尝试将良好的行为习惯根植于学生们。
B1 noun ɪnˈven.ʃən

invention

发明
Meaning
The action of inventing something, typically a process or device.
Example
The invention revolutionized communication.
这个发明彻底改变了通信。
C2 adjective /ˈɪkθiɪk/

ichthyic

鱼类的
Meaning
Relating to or resembling fish.
Example
The artist's painting had an ichthyic quality.
艺术家的画作具有鱼类的特质。
C1 noun /aɪˈdiː.ə.lɪ.zəm/

Idealism

理想主义
Meaning
the pursuit of high principles and noble goals; unrealistic pursuit of perfection
Example
His youthful idealism motivated him to join various social justice movements.
他的青春理想主义激励他加入了各种社会公正运动。
C2 noun /ˌɪnvəˈkeɪʃən/

invocation

祈求
Meaning
the act of calling upon a higher power for help, blessing, or inspiration
Example
The ceremony began with an invocation to the gods.
仪式以对神的祈求开始。
C2 adjective /ɪnˈɡlɔːriəs/

inglorious

可耻的
Meaning
Causing shame or disgrace; not bringing honor or glory.
Example
The army suffered an inglorious defeat.
军队遭遇了可耻的失败。
C1 adjective /ɪnˈɡreɪnd/

ingrained

根深蒂固
Meaning
Firmly fixed or established; deeply rooted and difficult to change.
Example
His ingrained habits were hard to break.
他的根深蒂固的习惯很难改变。
C2 verb /ɜːrk/

irk

激怒
Meaning
to annoy or irritate someone
Example
It irks me when people are late without calling.
当人们没有打电话就迟到时，我感到很生气。
C1 adjective /ɪnˈtændʒəbl/

intangible

无形的
Meaning
Unable to be touched or grasped; not having a physical presence.
Example
Trust is an intangible quality in relationships.
信任是关系中一种无形的品质。
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 verb /ˈɪl.ə.streɪt/

illustrate

插图
Meaning
to explain or make something clear by using examples, pictures, or comparisons
Example
The teacher used diagrams to illustrate the concept.
老师用图表来说明这个概念。
B1 noun /ɪnˈtɛnʃən/

intention

意图
Meaning
A plan, aim, or purpose behind an action.
Example
Her intention was to finish the project before the deadline.
她的意图是在截止日期之前完成项目。
C1 noun ˌɪndɪˈspensəbl səˈpɔːrt

indispensable support

不可或缺的支持
Meaning
Essential assistance that cannot be done without; absolutely necessary help.
Example
Volunteers provide indispensable support to communities.
志愿者为社区提供不可或缺的支持。
C2 noun /ˈɪmpjʊdəns/

impudence

无礼
Meaning
Rude and disrespectful behavior.
Example
The student's impudence shocked the entire class.
学生的无礼行为让全班震惊。
B2 noun ˌɪn.stəˈleɪ.ʃən

installation

安装
Meaning
The action or process of installing someone or something, or of being installed.
Example
The installation of the submarine cable is almost complete.
海底电缆的安装几乎完成。
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。
A2 verb /ɪmˈpruːv/

improve

改善
Meaning
to make or become better; to enhance quality or condition
Example
Practice helps improve your skills.
练习帮助提高你的技能。
C2 adjective /ɪnˈeɪliənəbl/

inalienable

不可转让
Meaning
Unable to be taken away or transferred; absolute and permanent.
Example
Freedom of speech is an inalienable right.
言论自由是一项不可转让的权利。
C1 verb /ɪɡˈnaɪt/

ignite

点燃
Meaning
To catch fire or cause to catch fire; to start or arouse.
Example
The sparks ignited the dry leaves in seconds.
火花在几秒钟内点燃了干叶。
C1 verb /ɪnˈtɪmɪdeɪt/

intimidate

Meaning
To frighten or overawe someone, especially to make them do what one wants.
Example
The bully tried to intimidate the smaller kids.
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。
B1 verb ɪnˈspaɪər

inspire

激励
Meaning
To fill someone with the urge or ability to do or feel something, especially creative or noble.
Example
Artemis seeks to inspire future generations.
阿尔忒弥斯寻求激励未来的几代人。
C2 noun /ˌɪndɛnˈteɪʃən/

indentation

缩进
Meaning
A space left at the beginning of a line of text; a notch or deep recess on a surface.
Example
The teacher asked the students to use proper indentation in their essays.
老师要求学生在他们的论文中使用正确的缩进。
B1 noun /ɪnˈstrʌkʃən/

instruction

指令
Meaning
Detailed information telling how something should be done or operated.
Example
Please read the instruction carefully before using the machine.
请在使用机器前仔细阅读指令。
C1 adjective /ɪˈrɛvəkəbl/

irrevocable

不可撤销
Meaning
Not able to be revoked, changed, or undone.
Example
She made an irrevocable decision to leave the company.
她做出了一个不可撤销的决定离开公司。
C2 adjective /ˌɪnsəˈluːbriəs/

insalubrious

不健康
Meaning
Unhealthy or not conducive to well-being.
Example
They moved out of the insalubrious neighborhood for the sake of their health.
他们为了健康搬出了不健康的社区
B2 noun /ɪnˈsaɪdə/

insider

内部人士
Meaning
a person within a group or organization who has access to confidential information
Example
He was an insider who knew all the company's secrets.
他是一个了解公司所有秘密的内部人士。
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。
B1 adjective /ɪˈnɪʃəl/

initial

初步的
Meaning
Existing or occurring at the beginning.
Example
Her initial reaction was one of surprise.
她的初步反应是惊讶。
B2 adjective /ɪnˈtɒlərənt/

intolerant

不宽容
Meaning
unwilling to accept or respect beliefs or behavior different from one's own
Example
He is intolerant of any opinion that differs from his own.
他不能容忍与自己意见不同的任何观点。
B2 noun ˌɪr.ɪˈɡeɪ.ʃən

irrigation

灌溉
Meaning
The artificial application of water to land or soil.
Example
Irrigation systems improve crop yields in dry regions.
灌溉系统提高了干旱地区作物的产量。
C1 noun /ɪnˈtruː.ʒən/

intrusion

未经授权的进入
Meaning
Unauthorized entry into a system or place without permission
Example
The company detected an intrusion in its server.
公司在其服务器中发现了入侵。
C2 adjective /ˈɪl bred/

Ill-bred

无教养的
Meaning
lacking good manners; rude; showing poor upbringing
Example
His ill-bred behavior shocked everyone at the dinner party.
他的无教养行为让晚宴上的每个人都震惊。
B1 verb /ɪnˈsɪst/

insist

坚持
Meaning
to demand firmly; to state persistently
Example
He insisted on paying the bill.
他坚持要付账单。
B1 adjective /ˈɪnər/

inner

内在的
Meaning
Located inside or closer to the center; relating to one’s thoughts or feelings.
Example
She shared her inner thoughts with her best friend.
她与她最好的朋友分享了她的内心想法。
C2 verb /ɪmˈpjuːt/

impute

归因于
Meaning
to attribute a fault or responsibility to someone
Example
They imputed the company's success to good leadership.
他们将公司的成功归功于出色的领导力。
B2 adjective /ɪnˈtɛns/

intense

强烈
Meaning
Of extreme force, degree, or strength.
Example
She felt intense pain after the accident.
她在事故后感到剧烈的疼痛。
C1 noun /ˌɪndɪˈdʒɛstʃən/

indigestion

Meaning
Discomfort or pain in the stomach associated with difficulty in digesting food.
Example
He avoided spicy food because it often gave him indigestion.
C1 adjective /ˌɪn.dɪˈspen.sə.bəl/

indispensable

不可或缺
Meaning
Absolutely necessary, essential
Example
Water is indispensable for human survival.
水对人类生存至关重要。
C1 adjective /ˌɪnˌkɒnsɪˈkwɛnʃəl/

inconsequential

微不足道
Meaning
Not important or significant; too small to matter.
Example
The mistake was minor and inconsequential.
这个错误是微不足道的。
C1 adjective; noun /ɪˈmɔːrtl/

immortal

不朽的
Meaning
living forever; never dying; lasting forever in fame or memory
Example
Legends often describe heroes as immortal beings who never die.
传说中英雄是不朽的存在。
C2 adjective ˌɪm.pəˈtɜː.bə.bəl

imperturbable

沉着冷静
Meaning
Unable to be upset or excited; not easily disturbed.
Example
His imperturbable nature made him a great leader.
他沉着冷静的性格使他成为了一个伟大的领导者。
C1 noun ˌɪn.toʊˈneɪ.ʃən

intonation

语调
Meaning
The rise and fall of tone in speech and pronunciation.
Example
Proper intonation enhances the clarity of a speech.
正确的语调提高演讲的清晰度。
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 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。
C1 noun /ɪnˈfjuːʒən/

infusion

草药注入
Meaning
the act of introducing something into another; a drink made by steeping leaves or herbs in liquid
Example
She prepared a calming infusion of chamomile tea.
她准备了一杯舒缓的洋甘菊茶注入。
C1 adjective /ɪnˈkɒŋɡruəs/

incongruous

不一致
Meaning
Not fitting in with or suitable for the surroundings.
Example
His jokes were incongruous during the serious meeting.
他的笑话在严肃的会议中显得不一致。
C2 adjective /ɪˈmɪsəbl/

immiscible

不相溶
Meaning
Describes liquids that do not mix together.
Example
Oil and water are immiscible liquids.
油和水是无法混合的液体。
C2 noun /ˌɪnkænˈteɪʃən/

incantation

咒语
Meaning
a series of words used as a magic spell or charm
Example
The wizard chanted an incantation to summon the spirits.
巫师念了一段咒语来召唤灵魂。
C1 adjective /ˌɪnsərˈmaʊntəbl/

insurmountable

不可逾越
Meaning
Too great to be overcome.
Example
The explorers faced insurmountable odds in the desert.
探险者在沙漠中面对着无法逾越的困难。
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。
A2 noun, verb /ˈɪʃuː/

issue

问题, 出版, 分发
Meaning
A problem, topic, or the act of supplying or distributing something.
Example
The magazine will issue a new edition next week.
杂志将在下周发布新版本。
C2 noun /ɪnˌtɜːrpəˈleɪʃən/

interpolation

插值
Meaning
The act of inserting something into a text or estimating values within a sequence of data.
Example
The scientist used interpolation to predict the missing data points.
科学家使用插值法来预测缺失的数据点。
C1 noun /ˌɪnkənˈsɪstənsi/

inconsistency

不一致
Meaning
The quality of being contradictory, irregular, or not staying the same.
Example
There is an inconsistency between his words and actions.
他的话语和行为之间存在不一致。
B2 noun ˈɪndɪkeɪtə

indicator

指标
Meaning
A thing that indicates the state or level of something.
Example
The unemployment rate is a key indicator of economic health.
失业率是经济健康的重要指标。
C2 adjective /ɪɡˈnoʊ.bəl/

Ignoble

卑鄙; 可耻; 不光彩
Meaning
dishonorable; not noble in character; base or mean
Example
His ignoble actions betrayed his friends' trust.
他卑鄙的行为背叛了朋友的信任。
C2 adjective /ɪmˈpɒndərəbl̩/

imponderable

无法估量
Meaning
Something difficult or impossible to estimate, assess, or understand
Example
The outcome of the election depends on many imponderable factors.
选举结果取决于许多无法估量的因素。
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。
C2 adjective /aɪˈdɒlətrəs/

idolatrous

偶像崇拜者
Meaning
Excessively admiring or worshipping someone or something as an idol.
Example
The king was criticized for his idolatrous devotion to wealth.
国王因其对财富的偶像崇拜而受到批评。
C2 noun /ˈɪnˌɡreɪt/

ingrate

Meaning
An ungrateful person; someone who shows no appreciation.
Example
He worked hard for his friend, but the ingrate never thanked him.
B2 adjective /ˌɪnɪˈfɪʃənt/

Inefficient

无效率
Meaning
not achieving maximum productivity; wasteful of time or resources
Example
The old computer system was inefficient and wasted a lot of time.
老旧的计算机系统效率低，浪费了很多时间。
C2 noun /ɪnˈsɪpiəns/

incipience

开始
Meaning
the beginning or initial stage of something
Example
The project was still in its incipience when funding was approved.
当资金获得批准时，项目仍处于其开始阶段。
C1 adjective /ɪnˈsɛnsəbl/

insensible

昏迷
Meaning
Unconscious; unaware of or indifferent to something.
Example
He was insensible to the cold as he lay in the snow.
他在雪地里躺着时，对寒冷昏迷不觉。
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。
C1 noun /ˈɪn.trə.vɜːrt/

introvert

内向
Meaning
A person who tends to be shy and prefers spending time alone rather than in groups.
Example
As an introvert, he preferred reading over attending parties.
作为一个内向的人，他更喜欢读书而不是参加派对。
B2 adjective /ɪnˈstrʌkʃənəl/

instructional

教学的
Meaning
providing knowledge or information; intended to teach
Example
The website offers many instructional videos for beginners.
该网站提供许多教学视频，适合初学者。
C1 noun ˌɪrɪˈvɜːrsəbl ˈdæmɪdʒ

irreversible damage

不可逆的损害
Meaning
Harm or injury that cannot be undone or repaired.
Example
Climate change causes irreversible damage to ecosystems.
气候变化对生态系统造成了不可逆的损害。
C2 noun /ɪnˈtɛmpərəns/

intemperance

放纵
Meaning
Lack of moderation or self-control, especially with drinking or eating.
Example
His intemperance in drinking ruined his health.
他的饮酒放纵毁了他的健康。
C1 adjective /ˌɪnəˈtɛntɪv/

inattentive

不专心的
Meaning
not paying attention; lacking focus or concentration
Example
The inattentive student missed several important instructions.
那个不专心的学生错过了几条重要指示。
C1 noun /aɪl/

isle

小岛
Meaning
A small island or peninsula, often poetic or literary.
Example
They spent their honeymoon on a beautiful tropical isle.
他们在一个美丽的热带小岛上度过了他们的蜜月。
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。
C2 verb /ˈɪməleɪt/

immolate

自焚
Meaning
To kill or sacrifice, especially by burning.
Example
The protesters threatened to immolate themselves in front of the building.
抗议者威胁要在建筑物前自焚。
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。
C1 noun /ɪmˈpjʊərəti/

impurity

杂质
Meaning
the state of being unclean or contaminated; a substance that makes something impure
Example
The scientist removed every impurity from the water sample.
科学家去除了水样中的所有杂质。
C2 noun /ˌɪkθiˈɒlədʒɪst/

ichthyologist

鱼类学家
Meaning
A scientist who studies fish.
Example
The ichthyologist discovered a new species of fish in the river.
鱼类学家在河里发现了一种新的鱼类。
C2 adjective /ɪˈnɪm.ɪ.tə.bəl/

inimitable

无可比拟
Meaning
So good or unusual as to be impossible to copy; unique.
Example
His inimitable writing style made him a literary legend.
他那无可比拟的写作风格使他成为了文学传奇。
C2 adjective /ˌaɪsəʊˈθɜːrməl/

isothermal

等温
Meaning
Having or maintaining equal or constant temperature.
Example
The experiment was conducted under isothermal conditions.
实验在等温条件下进行。
C2 adjective/noun /ɪnˈkɑːrnədiːn/

incarnadine

深红色
Meaning
a bright crimson or pinkish-red color
Example
The sky turned incarnadine at sunset.
夕阳下天空变成了深红色。
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。
C1 adjective /ɪmˈplɔːzəbl/

implausible

不可信
Meaning
Not seeming reasonable or probable; unlikely to be true.
Example
The story she told was so implausible that no one believed her.
她讲的故事太不可信，以至于没有人相信她。
A2 noun /ˈɪntəvjuː/

interview

面试
Meaning
A meeting of people face to face, especially for consultation.
Example
The interview was conducted in a calm and professional manner.
面试以平静和专业的方式进行。
C1 adjective /ˌɪndɪˈstrʌktəbl/

indestructible

无法摧毁
Meaning
Impossible to destroy or break.
Example
The superhero's shield was said to be indestructible.
有人说超级英雄的盾牌是无法摧毁的。