insinuate
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C1 verb /ɪnˈsɪnjueɪt/

insinuate

Meaning
To suggest or hint something indirectly and often unpleasantly.
Example
He insinuated that she had lied about her qualifications.
C1 noun /ɪnˈdem.nə.ti/

Indemnity

赔偿
Meaning
security or protection against a loss or other financial burden; compensation for damage or loss
Example
The insurance company provided full indemnity for the damages caused by the flood.
保险公司为洪水造成的损失提供了完全的赔偿。
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

直觉的
Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
该软件具有直观的设计，使其易于使用。
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。
C1 noun /ɪnˈsɜːʃən/

insertion

插入
Meaning
the action of inserting something into something else
Example
The insertion of the new data was completed successfully.
新数据的插入已成功完成。
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。
C1 noun /ˌɪn.trəˈspek.ʃən/

introspection

内省
Meaning
The examination or observation of one's own mental and emotional processes; self-reflection.
Example
Through introspection, she gained insight into her emotions.
通过内省，她对自己的情感有了更深刻的理解。
C1 verb /aɪˈdiː.ə.laɪz/

idealize

理想化
Meaning
To regard or represent something as perfect or better than it really is.
Example
Children often idealize their parents.
孩子们常常理想化他们的父母。
C1 noun /ˈɪrɪtənt/

irritant

刺激物
Meaning
something that causes irritation or discomfort
Example
Dust is a common irritant for people with allergies.
灰尘是过敏者常见的刺激物。
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。
C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

不可能性
Meaning
the state or fact of being impossible; something that cannot be done or achieved
Example
Finishing the project in one day was an impossibility.
在一天内完成这个项目是不可能的。
C1 adjective /ˌɪnækˈsɛsəbl/

inaccessible

无法接近
Meaning
unable to be reached, entered, or understood
Example
The remote village is almost inaccessible during the rainy season.
这个偏远的村庄在雨季几乎是无法接近的。
C1 adjective /ˈɪnbɔːrn/

Inborn

与生俱来的; 天生的; 内在的
Meaning
existing from birth; natural; inherent
Example
She has an inborn talent for music.
她有天生的音乐才能。
C1 adjective /ɪnˈsteɪbəl/

instable

不稳定的
Meaning
not stable; liable to change, collapse, or fail; lacking firmness or reliability
Example
The instable political situation worried foreign investors.
不稳定的政治局势让外国投资者担心。
C1 adjective /ɪnˈflæməˌtɔːri/

inflammatory

幸福
Meaning
causing inflammation in the body; arousing anger, hostility, or strong emotion
Example
His inflammatory speech triggered protests across the city.
她在收到奖项时无法隐藏自己的幸福感。
C1 verb /ɪnˈsaɪt/

incite

煽动
Meaning
to provoke; to stir up
Example
His speech incited the crowd to violence.
他的演讲激起了人群的暴力。
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 ɪmˈpɛkəbl

impeccable

完美无瑕
Meaning
In accordance with the highest standards; faultless.
Example
His impeccable taste in fashion was admired by all his peers.
他的完美品味在时尚界得到了所有同事的赞赏。
C1 adjective /ˌɪndɪˈstɪŋkt/

indistinct

模糊的
Meaning
Not clear or sharply defined; vague or blurred.
Example
The sound of voices was indistinct in the distance.
远处的声音是模糊的。
C1 adjective ɪnˈkʌm.bənt

incumbent

有义务的
Meaning
necessary for (someone) as a duty or responsibility.
Example
It is incumbent upon all citizens to obey the law.
所有公民都有义务遵守法律。
C1 adjective /ˌɪnəˈfɛnsɪv/

inoffensive

无害的
Meaning
Not likely to offend or provoke; harmless.
Example
His inoffensive remarks kept the conversation friendly.
他的无害评论让谈话保持友好。
C1 adjective /ˌɪn.səbˈstæn.ʃəl/

insubstantial

不实的
Meaning
Lacking strength, substance, or solidity.
Example
The evidence provided was insubstantial and unconvincing.
提供的证据是不实的且令人信服。
C1 noun /ɪˈmɜː.ʃən/

immersion

沉浸
Meaning
Complete engagement in an environment or experience.
Example
Immersion in VR games makes users feel like they are inside the virtual world.
沉浸在虚拟现实游戏中让用户感觉自己仿佛置身于虚拟世界。
C1 verb /ˈɪtəreɪt/

iterate

迭代
Meaning
To repeat a process or statement, often to improve or refine.
Example
The software team will iterate the design until it meets user needs.
软件团队将反复迭代设计，直到满足用户需求。
C1 verb ɪˈmɜːrs

immerse

沉浸
Meaning
To involve oneself deeply in a particular activity or interest; to surround completely.
Example
Immerse yourself in the new language.
沉浸在新的语言中。
C1 verb /ɪnˈskraɪb/

inscribe

铭刻
Meaning
to write or carve words or symbols on a surface
Example
They inscribed her name on the trophy.
他们把她的名字刻在奖杯上。
C1 adjective ɪnˈdel.ə.bəl

indelible

不可磨灭的
Meaning
Making marks that cannot be removed; impossible to forget or remove.
Example
Her speech left an indelible mark on the audience.
她的演讲给观众留下了不可磨灭的印象。
C1 adjective /ˌaɪdiəˈlɪstɪk/

Idealistic

理想主义的
Meaning
pursuing high principles or ideals; unrealistically optimistic
Example
She has an idealistic view of changing the world.
她对改变世界有着理想主义的看法。
C1 adjective /ɪnˈvɪnsəbl/

invincible

不可战胜
Meaning
too powerful to be defeated or overcome
Example
The team seemed invincible after winning ten matches in a row.
这支队伍在连续赢得十场比赛后，看起来不可战胜。
C1 verb /ˈɪnkjʊˌbeɪt/

incubate

孵化
Meaning
to keep eggs, cells, or organisms at the right conditions for development
Example
The hen will incubate the eggs until they hatch.
母鸡会孵化蛋直到它们孵化。
C1 adjective /ɪˈrɛpərəbəl/

Irreparable

不可修复的
Meaning
impossible to repair or fix; permanent damage that cannot be undone
Example
The accident caused irreparable damage to his spine.
事故导致了他脊柱的不可修复损伤。
C1 verb /ˈɪnstɪˌɡeɪt/

instigate

挑拨
Meaning
To bring about or initiate an action, often something negative.
Example
He was accused of instigating the riot.
他被指控挑起暴乱。
C1 noun /ɪˈmiːdiəsi/

immediacy

即时性, 紧迫感
Meaning
The quality of bringing one into direct and instant involvement with something, giving rise to a sense of urgency or excitement.
Example
The immediacy of digital communication has reshaped business operations.
数字通信的即时性已经改变了商业操作。
C1 adjective /ɪnˈkɒmp(ə)rəbl/

incomparable

无可比拟
Meaning
Without an equal in quality or excellence; matchless.
Example
The view from the mountain was incomparable.
山顶的景色无可比拟。
C1 verb /ɪmˈpiːtʃ/

impeach

Meaning
To charge a public official with misconduct while in office.
Example
The parliament voted to impeach the president.
C1 adjective /ˈɪnsjələr/

insular

狭隘的，岛屿相关的
Meaning
Narrow-minded, isolated, or relating to an island.
Example
The community was criticized for its insular attitudes toward outsiders.
该社区因其对外来者的封闭态度而受到批评。
C1 noun /ˈɪmɪnəns/

imminence

即将发生，临近状态
Meaning
the state of being about to happen
Example
The imminence of the storm forced people to take shelter.
风暴的临近使人们不得不寻找庇护所。
C1 adjective /ɪmˈprɒmp.tjuː/

impromptu

即兴
Meaning
Done without being planned, organized, or rehearsed; spontaneous.
Example
He gave an impromptu speech at the event.
他在活动中做了即兴演讲。
C1 adverb /ˌɪnsɪˈdɛntəli/

incidentally

顺便
Meaning
by the way; used to introduce a remark not directly related to the main subject
Example
Incidentally, did you know that she studied in Paris?
顺便问一下，你知道她曾经在巴黎学习吗？
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 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。
C1 adverb /ɪnˈdɛfɪnətli/

indefinitely

无限期
Meaning
for an unlimited or unspecified period of time
Example
The project has been postponed indefinitely.
该项目已无限期推迟。
C1 adjective /ˈɪnsələnt/

insolent

无礼的, 傲慢的
Meaning
showing a rude and arrogant lack of respect
Example
The insolent student refused to follow the teacher's instructions.
那个无礼的学生拒绝听从老师的指示。
C1 verb /ˌɪntəˈsɛkt/

intersect

交叉
Meaning
to cross or pass through each other
Example
The two roads intersect at the city center.
这两条道路在市中心交汇。
C1 adjective /ɪˈmeʒərəbəl/

Immeasurable

不可测量的
Meaning
too large or extensive to measure; boundless
Example
The immeasurable love of a mother knows no bounds.
母亲那无可估量的爱没有边界。
C1 verb /ˈɪnfɪltreɪt/

infiltrate

渗透
Meaning
to secretly enter or gain access to a place or group
Example
The spies managed to infiltrate the enemy base.
间谍们设法渗透敌人基地。
C1 verb /ɪmˈbɛd/

imbed

嵌入
Meaning
To fix firmly or deeply in a surrounding mass.
Example
The journalist imbedded himself with the troops to report firsthand.
记者将自己嵌入部队中以第一时间进行报道。
C1 noun /ɪˈreləvəns/

irrelevance

无关性
Meaning
the quality of not being connected to or important for a particular matter; lack of significance
Example
His long explanation only highlighted the irrelevance of the details to the main issue.
他冗长的解释只凸显了这些细节与主要问题的无关性。
C1 adjective /ɪˈnɔːrdənət/

inordinate

过度的
Meaning
Excessive or unusually large in degree.
Example
She spent an inordinate amount of time on her phone.
她在手机上花费了过多的时间。
C1 adjective /ˌɪnədˈvɜːrtənt/

inadvertent

无意的, 非故意的
Meaning
Not resulting from or achieved through deliberate planning; unintentional.
Example
Her inadvertent mistake caused a delay in the project.
她的无意错误导致了项目的延迟。
C1 adjective /ɪnˈstɪŋk.tɪv/

instinctive

本能的, 自然的, 自动的
Meaning
Based on instinct; done without conscious thought; natural and automatic.
Example
His instinctive reaction saved his life.
他的本能反应救了他的生命。
C1 noun /ɪnˈkɒmpɪtəns/

incompetence

不称职
Meaning
Lack of ability, skill, or effectiveness in doing something.
Example
The project failed due to the manager’s incompetence.
由于经理的不称职，项目失败了。
C1 adjective /ˌɪnkɒmprɪˈhɛnsəbl/

incomprehensible

难以理解的
Meaning
Impossible or very difficult to understand.
Example
The professor’s lecture was so fast it became incomprehensible.
教授的讲座太快了，以至于变得难以理解。
C1 adjective /ɪnˈdiːsənt/

indecent

不雅的
Meaning
not conforming to accepted standards of behavior or morality; improper or offensive
Example
He was warned for making an indecent remark during the meeting.
他因为说了不雅的话而受到警告。
C1 noun /ˌɪməˈtjʊərəti/

immaturity

不成熟
Meaning
the state of not being fully developed emotionally, mentally, or physically; lack of maturity
Example
His immaturity made it difficult for him to handle responsibility.
他的不成熟让他难以承担责任。
C1 adjective /ɪˈnɜːrt/

inert

惰性
Meaning
lacking the ability or strength to move or act; chemically inactive
Example
The patient remained inert on the bed.
病人躺在床上保持不动。
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。
C1 noun /ˌɪnkjʊˈbeɪʃən/

incubation

将蛋、细胞或生物置于适宜的环境条件中以促进其发展的过程
Meaning
the process of keeping eggs, cells, or organisms in the right conditions for development
Example
The incubation of the eggs lasted for three weeks.
蛋的孵化持续了三周。
C1 adjective /ˌɪrɪˈspɛktɪv/

Irrespective

无论如何; 不考虑
Meaning
without taking something into account; regardless of
Example
All students will be treated equally, irrespective of their background.
所有学生都会平等对待，无论他们的背景如何。
C1 adjective /ɪnˈtræk.tə.bəl/

intractable

无法控制
Meaning
Difficult or impossible to manage, control, or solve.
Example
The conflict has become an intractable problem.
冲突已经成为一个无法控制的问题。
C1 adjective /ɪmˈpɜːrsənl/

impersonal

非个人化
Meaning
not influenced by, showing, or involving personal feelings; lacking human warmth or emotion
Example
The letter was written in a very impersonal style.
信件是以非常非个人化的风格写的。
C1 verb /ɪnˈterəˌɡeɪt/

interrogate

审问
Meaning
to ask someone questions in a thorough and formal way; to question intensively
Example
The police interrogated the suspect for hours.
警察审问嫌疑人几个小时。
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。
C1 noun /ɪnˈædɪkwəsi/

inadequacy

不足
Meaning
lack of sufficient ability, quality, or strength; a feeling of not being good enough
Example
She struggled with feelings of inadequacy at work despite her strong qualifications.
尽管资历很强，她在工作中仍感到不足。
C1 verb /ɪnˈfjʊərieɪt/

infuriate

激怒
Meaning
To make someone extremely angry.
Example
His careless remarks infuriated the entire team.
他的不小心评论让整个团队生气。
C1 verb /ɪnˈdʌkt/

induct

Meaning
to formally admit someone into a position, organization, or office
Example
She was inducted into the university's honor society.
C1 noun /ˌɪnkɑːrˈneɪʃən/

incarnation

化身
Meaning
the embodiment of a deity, spirit, or quality in a physical form
Example
The monk was considered the incarnation of compassion.
这位僧侣被认为是慈悲的化身。
C1 adjective /ɪnˈtɛlɪdʒəbl/

intelligible

Meaning
Able to be understood; clear enough to be comprehended.
Example
Her speech was barely intelligible over the noise.
C1 adverb /ˈɪnwərdli/

inwardly

内心
Meaning
In the mind or spirit; not outwardly visible.
Example
She smiled outwardly but inwardly she was worried.
她外表微笑，但内心却感到担忧。
C1 verb /ɪnˈvælɪdeɪt/

invalidate

使无效
Meaning
To make something not valid or legally acceptable.
Example
The new evidence may invalidate the previous ruling.
新证据可能使之前的裁决无效。
C1 noun /ˈɪn.floʊ/

inflow

流入
Meaning
The movement of things such as money, people, or water into a place.
Example
The inflow of tourists boosted the local economy.
游客的流入促进了当地经济的发展。
C1 adjective /ɪnˈdʌldʒənt/

indulgent

宽容的
Meaning
Having a tendency to be overly generous or lenient with someone.
Example
The indulgent mother allowed her child to stay up late.
宽容的母亲让孩子晚点才睡。
C1 adjective /ˌɪnɑːrˈtɪkjʊlət/

inarticulate

含糊不清
Meaning
Unable to express oneself clearly or effectively in speech or writing.
Example
She became inarticulate with emotion during the speech.
她在演讲中因为情绪而变得含糊不清。
C1 adjective ˌɪn.təˈmɪt.ənt

intermittent

间歇的
Meaning
Happening irregularly, not continuously.
Example
The rain was intermittent throughout the day.
雨整天都间歇不断。
C1 noun /ˌɪntərˌɒpərəˈbɪləti/

interoperability

互操作性
Meaning
The ability of computer systems or software to exchange and make use of information.
Example
The interoperability of different software systems ensures seamless workflow.
不同软件系统的互操作性确保了无缝的工作流程。
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。
C1 noun /ɪnˈfɜːrnoʊ/

inferno

火灾
Meaning
a large, intense fire that is dangerously out of control
Example
The building turned into an inferno within minutes.
这座建筑在几分钟内变成了火灾。
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。
C1 adjective /ɪnˈflɛksəbl/

inflexible

不灵活
Meaning
Not able to bend or change; unwilling to change ideas or behavior.
Example
His inflexible attitude made negotiations difficult.
他那不灵活的态度使谈判变得困难。
C1 adjective ˌɪn.krəˈmen.təl

incremental

增量
Meaning
Relating to or denoting an increase or addition, especially one of a series on a fixed scale; proceeding in small stages.
Example
Incremental changes ensure sustainability.
增量变化确保可持续性。
C1 adjective /ˌɪməˈtɪəriəl/

immaterial

无关紧要
Meaning
Not important or relevant; lacking physical substance.
Example
The judge ruled that the argument was immaterial to the case.
法官裁定，该论点与案件无关。
C1 verb /ɪnˈtruːd/

intrude

侵入
Meaning
To enter a place or situation where one is not wanted or not invited.
Example
He felt embarrassed to intrude on their private conversation.
他感到很尴尬，打扰了他们的私人谈话。
C1 noun /ˈaɪsətəʊp/

isotope

同位素
Meaning
Atoms of the same element with equal number of protons but different numbers of neutrons.
Example
Carbon-14 is a radioactive isotope used in dating fossils.
碳-14 是一种放射性同位素，用于化石的年代测定。
C1 verb /ɪmˈplɔːr/

implore

Meaning
To beg someone earnestly or desperately to do something.
Example
She implored him to stay with her.
C1 verb ɪˈnɪʃɪeɪtɪd

initiated

启动
Meaning
Caused a process or action to begin; started something.
Example
The project was initiated to enhance marine biodiversity.
该项目已启动以促进海洋生物多样性。
C1 adjective /ˌɪndɪˈsaɪsɪv/

Indecisive

优柔寡断的
Meaning
unable to make decisions quickly; hesitant; wavering
Example
She was indecisive about which university to attend.
她对要去哪个大学犹豫不决。
C1 adjective /ˌɪrɪˈvɜːrsəbl/

irreversible

不可逆的
Meaning
Not able to be undone, changed, or reversed.
Example
The damage caused by the fire was irreversible.
火灾造成的损失是不可逆的。
C1 adjective /ɪnˈveɪsɪv/

invasive

侵入性的
Meaning
Tending to spread harmfully, intruding aggressively, or encroaching beyond proper boundaries.
Example
The doctor explained that the procedure was minimally invasive.
医生解释说，该程序是最小的侵入性。
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 noun /ɪˈnɜː.ʃə/

Inertia

惯性；缺乏活动
Meaning
a tendency to do nothing or remain unchanged; lack of activity or movement
Example
The team's inertia prevented them from adapting to the rapidly changing market conditions.
团队的惯性阻止了他们适应迅速变化的市场条件。
C1 verb /ˌɪnstɪˈtjuːʃənəlaɪz/

institutionalize

制度化
Meaning
to establish something as a formal institution, custom, or practice
Example
The government seeks to institutionalize environmental protection.
政府致力于将环境保护制度化。
C1 adjective ɪˈluː.sər.i

illusory

虚幻的
Meaning
Based on illusion; not real although seeming to be.
Example
His sense of security was entirely illusory.
他的安全感完全是虚幻的。
C1 adjective, noun /ɪnˈdɪkətɪv/

indicative

指示性
Meaning
Serving as a sign or expression of something; in grammar, a mood used to make factual statements.
Example
His tone was indicative of his frustration.
他的语气表明了他的沮丧。
C1 noun /ɪnˈdʒʌŋkʃən/

injunction

禁令
Meaning
A judicial order restraining a person from an action or compelling a certain act.
Example
The court issued an injunction to stop the company from polluting the river.
法院发布了一项禁令，阻止公司污染河流。
C1 adjective /ˈaɪərnˌklæd/

ironclad

铁定的
Meaning
impossible to change, break, or dispute; very strong and firm
Example
The company had an ironclad contract with its suppliers.
公司与其供应商签订了铁定合同。
C1 noun /ɪnˈsɜːrdʒəns/

insurgence

叛乱
Meaning
An act of rebellion or uprising against authority.
Example
The government struggled to contain the growing insurgence.
政府难以控制日益增长的叛乱。
C1 adjective /ˌɪndɪˈskriːt/

indiscreet

不谨慎
Meaning
Not careful in what one says or does, likely to reveal secrets or offend.
Example
It was indiscreet of him to mention the plan in public.
他在公众场合提到计划是不谨慎的。
C1 adjective /ˌɪnstənˈteɪniəs/

instantaneous

即时
Meaning
Happening immediately, without any delay.
Example
The change in temperature was almost instantaneous.
温度变化几乎是即时的。
C1 verb /ɪnˈfrɪndʒ/

infringe

侵犯
Meaning
To actively break the terms of a law, agreement, or right.
Example
Copying this software without permission will infringe copyright laws.
未經許可複製此軟件將侵犯版權法。
C1 adjective /ˈɪnərmoʊst/

Innermost

最深的; 最个人的
Meaning
most private and secret; deepest; most personal
Example
She shared her innermost feelings with her closest friend.
她与最亲密的朋友分享了她最深的感受。
C1 adjective /ɪˈniː.bri.eɪ.tɪd/

inebriated

醉酒
Meaning
under the influence of alcohol; drunk
Example
He stumbled into the room completely inebriated.
他完全醉了，踉跄地走进了房间。
C1 adjective /ɪˈmoʊbəl/

immobile

无法移动
Meaning
unable to move or be moved
Example
After the accident, he was immobile for weeks.
事故发生后，他几周都无法移动。
C1 verb /ɪnˈvɜːrt/

invert

翻转
Meaning
To turn something upside down or in the opposite position, order, or direction.
Example
He inverted the glass to let the water drain out.
他翻转了玻璃杯，让水流出来。
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。
C1 adjective /ɪmˈpæʃənd/

impassioned

充满激情的
Meaning
Filled with or showing great emotion.
Example
She gave an impassioned speech about human rights.
她发表了关于人权的充满激情的演讲。
C1 noun /ɪnˈtɛstɪn/

intestine

肠
Meaning
The part of the digestive system where food is digested and absorbed, extending from the stomach to the anus.
Example
The doctor explained how nutrients are absorbed in the small intestine.
医生解释了营养物质如何在小肠中被吸收。
C1 noun /ˈɪnflʌks/

influx

涌入
Meaning
A large arrival or flow of people or things.
Example
The city experienced an influx of tourists during the festival.
这座城市在节日期间经历了大量游客的涌入。
C1 adjective /ˌɪmprɪˈsaɪs/

imprecise

不准确
Meaning
Not exact or accurate; vague.
Example
His explanation was too imprecise to be helpful.
他的解释不够准确，无法提供帮助。
C1 adjective /ˌɪrɪˈprɛsəbl̩/

irrepressible

不可抑制的
Meaning
Impossible to control or restrain.
Example
She had an irrepressible urge to laugh during the speech.
她在演讲中无法掩饰自己无法抑制的笑意。
C1 adjective /ɪnˈflæməbəl/

Inflammable

易燃; 可燃
Meaning
easily set on fire; flammable; combustible
Example
The inflammable material caught fire quickly.
易燃材料很快着火了。
C1 adjective /ˌɪn.ɪˈfɛk.tʃu.əl/

ineffectual

无效
Meaning
Not producing any or the desired effect; lacking the ability or qualities to achieve a purpose.
Example
The manager’s ineffectual leadership caused the team to lose motivation.
经理无效的领导导致团队失去了动力。
C1 verb /ɪnˈklaɪn/

incline

倾向
Meaning
to feel willing or favorably disposed toward something; to bend or tilt
Example
She is inclined to agree with the proposal.
她倾向于同意这个提议。
C1 noun /ˌɪnɪkˈspɪəriəns/

inexperience

缺乏经验
Meaning
Lack of knowledge or skill in a particular activity or field.
Example
His inexperience in handling negotiations was evident.
他在谈判中的缺乏经验显而易见。
C1 adjective /ˌɪnkəʊˈhɪərənt/

incoherent

不连贯
Meaning
Not clear or easy to understand; lacking logical connection.
Example
His explanation was so incoherent that nobody could follow it.
他的解释如此不连贯，以至于没有人能理解。
C1 noun /ɪnˈdɪɡ.nə.ti/

Indignity

耻辱
Meaning
treatment or circumstances that cause one to feel shame or loss of dignity; humiliation
Example
She refused to suffer the indignity of being searched without proper cause.
她拒绝忍受在没有正当理由的情况下被搜身所带来的耻辱。
C1 noun /ˌɪnfɪˈdɛləti/

infidelity

不忠
Meaning
the act of being unfaithful to a spouse or partner
Example
Their marriage ended due to his infidelity.
他们的婚姻因他的不忠而结束。
C1 noun /aɪˈtɪnərɛri/

itinerary

行程安排
Meaning
A planned route or schedule of a journey or trip.
Example
The travel agent gave us a detailed itinerary for our vacation.
旅行社为我们的假期提供了详细的行程安排。
C1 adjective /ˌɪndɪˈfɛnsəbl̩/

indefensible

无法辩护
Meaning
not able to be protected or justified
Example
The minister’s remarks were considered indefensible by the public.
部长的言论被公众视为无法辩护。
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 adverb /ˌɪn.dɪˈskrɪm.ɪ.nət.li/

Indiscriminately

无差别地
Meaning
without making careful distinctions; randomly; without discrimination
Example
The company fired employees indiscriminately without considering their performance.
公司无差别地解雇了员工，没考虑他们的表现。
C1 noun ˌɪntədɪˈpɛndənsi

interdependency

相互依存
Meaning
The dependence of two or more people or things on each other.
Example
The interdependency of the countries led to greater cooperation.
各国之间的相互依存促进了更大的合作。