- 承接《词汇 incendiary–inferno》，继续按字母顺序收录 C2 词表，这篇收 IN 开头的一批（infirmary - invective）。
- 涵盖冲突/叛乱类名词（insurgency、insurrection、internecine）和态度类形容词（insolent、intransigent、insouciant），每个词配一个常用搭配。
- 学完继续扩充高阶词汇量。
重点内容
| 英文 | 音标 | 中文 | 例句 | 常用搭配 |
|---|---|---|---|---|
| infirmary (n.) | /ɪnˈfɜːməri/ | 医务室 | She was taken to the school infirmary. | a school infirmary |
| inflammatory (adj.) | /ɪnˈflæmətəri/ | 煽动性的；引发炎症的 | inflammatory remarks at the rally | inflammatory language |
| influx (n.) | /ˈɪnflʌks/ | 涌入 | an influx of tourists every summer | a sudden influx |
| infraction (n.) | /ɪnˈfrækʃn/ | 违反 | a minor infraction of the rules | a traffic infraction |
| ingenious (adj.) | /ɪnˈdʒiːniəs/ | 巧妙的；有独创性的 | an ingenious solution to the problem | an ingenious device |
| ingenuity (n.) | /ˌɪndʒəˈnjuːəti/ | 智巧；独创性 | admired for his ingenuity | human ingenuity |
| ingenuous (adj.) | /ɪnˈdʒenjuəs/ | 天真率直的 | an ingenuous smile that revealed his youth | an ingenuous remark |
| ingrained (adj.) | /ɪnˈgreɪnd/ | 根深蒂固的 | ingrained habits hard to break | deeply ingrained |
| inhospitable (adj.) | /ˌɪnhɒˈspɪtəbl/ | 不适宜居住的；不友好的 | an inhospitable desert climate | an inhospitable environment |
| inhumanity (n.) | /ˌɪnhjuˈmænəti/ | 不人道 | man's inhumanity to man | acts of inhumanity |
| inimical (adj.) | /ɪˈnɪmɪkl/ | 有害的；敌意的 | policies inimical to progress | inimical to growth |
| iniquitous (adj.) | /ɪˈnɪkwɪtəs/ | 极不公正的 | an iniquitous system of taxation | an iniquitous law |
| injunction (n.) | /ɪnˈdʒʌŋkʃn/ | 禁令 | The court issued an injunction. | a court injunction |
| inkling (n.) | /ˈɪŋklɪŋ/ | 略知；模糊感觉 | She had no inkling of the truth. | not the slightest inkling |
| innocuous (adj.) | /ɪˈnɒkjuəs/ | 无害的 | an innocuous comment taken the wrong way | an innocuous remark |
| innuendo (n.) | /ˌɪnjuˈendəʊ/ | 影射；暗讽 | the article was full of innuendo | sexual innuendo |
| innumerable (adj.) | /ɪˈnjuːmərəbl/ | 无数的 | She's told him innumerable times. | innumerable occasions |
| inquisition (n.) | /ˌɪnkwɪˈzɪʃn/ | 严厉盘问；宗教裁判 | subjected to a lengthy inquisition | a relentless inquisition |
| insatiable (adj.) | /ɪnˈseɪʃəbl/ | 贪得无厌的 | an insatiable appetite for success | insatiable curiosity |
| inscrutable (adj.) | /ɪnˈskruːtəbl/ | 高深莫测的 | an inscrutable expression on his face | an inscrutable smile |
| insidious (adj.) | /ɪnˈsɪdiəs/ | 阴险的；潜伏的 | an insidious disease that spreads unnoticed | an insidious threat |
| insipid (adj.) | /ɪnˈsɪpɪd/ | 乏味的 | an insipid drink with no flavour | an insipid performance |
| insolent (adj.) | /ˈɪnsələnt/ | 无礼的 | an insolent reply to the teacher | an insolent attitude |
| insoluble (adj.) | /ɪnˈsɒljəbl/ | 无法解决的；不溶的 | an apparently insoluble problem | an insoluble dilemma |
| insouciant (adj.) | /ɪnˈsuːsiənt/ | 满不在乎的 | an insouciant attitude towards risk | an insouciant shrug |
| instigate (v.) | /ˈɪnstɪgeɪt/ | 煽动；发起 | plans to instigate reform | instigate legal proceedings |
| insurgency (n.) | /ɪnˈsɜːdʒənsi/ | 叛乱 | a growing insurgency in the region | an armed insurgency |
| insurmountable (adj.) | /ˌɪnsəˈmaʊntəbl/ | 不可克服的 | facing seemingly insurmountable odds | an insurmountable obstacle |
| insurrection (n.) | /ˌɪnsəˈrekʃn/ | 起义 | an armed insurrection against the regime | a violent insurrection |
| intelligentsia (n.) | /ɪnˌtelɪˈdʒentsiə/ | 知识分子阶层 | criticized by the liberal intelligentsia | the ruling intelligentsia |
| inter alia (adv.) | /ˌɪntər ˈeɪliə/ | 除了别的以外 | The report covers, inter alia, funding issues. | inter alia, the report states |
| interlude (n.) | /ˈɪntəluːd/ | 间奏；插曲 | a brief interlude of calm | a musical interlude |
| intermittently (adv.) | /ˌɪntəˈmɪtəntli/ | 间歇地 | It rained intermittently all day. | occur intermittently |
| internecine (adj.) | /ˌɪntəˈniːsaɪn/ | 内部斗争的 | internecine conflict within the party | internecine rivalry |
| intimation (n.) | /ˌɪntɪˈmeɪʃn/ | 暗示 | no intimation of trouble ahead | an early intimation |
| intimidation (n.) | /ɪnˌtɪmɪˈdeɪʃn/ | 恐吓 | accused of witness intimidation | a campaign of intimidation |
| intransigence (n.) | /ɪnˈtrænsɪdʒəns/ | 不妥协 | frustrated by political intransigence | stubborn intransigence |
| intransigent (adj.) | /ɪnˈtrænsɪdʒənt/ | 不妥协的 | an intransigent stance on the issue | an intransigent attitude |
| intrepid (adj.) | /ɪnˈtrepɪd/ | 无畏的 | an intrepid explorer of unknown lands | an intrepid adventurer |
| intrinsic (adj.) | /ɪnˈtrɪnsɪk/ | 内在的 | the intrinsic value of art | an intrinsic quality |
| introspection (n.) | /ˌɪntrəˈspekʃn/ | 内省 | a period of quiet introspection | deep introspection |
| intrusive (adj.) | /ɪnˈtruːsɪv/ | 侵扰性的 | intrusive questions about her private life | intrusive surveillance |
| intuition (n.) | /ˌɪntjuˈɪʃn/ | 直觉 | Trust your intuition on this. | a strong intuition |
| inundate (v.) | /ˈɪnʌndeɪt/ | 淹没；使应接不暇 | inundated with requests for help | inundate with emails |
| invasive (adj.) | /ɪnˈveɪsɪv/ | 侵入性的 | an invasive medical procedure | an invasive species |
| invective (n.) | /ɪnˈvektɪv/ | 谩骂 | a stream of invective against the referee | bitter invective |
*intransigence*（不妥协，名词）跟 *intransigent*（不妥协的，形容词）是同根词，常用于描述谈判/政治僵局中固执己见的一方。
Sources
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