- 承接《词汇 harassment–intent》，继续按字母顺序收录 Oxford 5000 C1 级别的剩余词，这篇收 I-L 开头的一批。
- 涵盖"长期/持续"类形容词（lifelong、long-standing、long-time）和调查/介入类名词（investigator、intervention、involvement），每个词配一个常用搭配。
- 学完继续扩充词汇覆盖率。
重点内容
| 英文 | 音标 | 中文 | 例句 | 常用搭配 |
|---|---|---|---|---|
| interactive (adj.) | /ˌɪntərˈæktɪv/ | 互动的 | It's an interactive exhibit. | an interactive app |
| interference (n.) | /ˌɪntəˈfɪərəns/ | 干涉 | She resented his interference. | government interference |
| interim (adj.) | /ˈɪntərɪm/ | 临时的 | He was named interim manager. | an interim report |
| intervention (n.) | /ˌɪntəˈvenʃn/ | 介入 | Military intervention was considered. | foreign intervention |
| investigator (n.) | /ɪnˈvestɪgeɪtə(r)/ | 调查员 | The investigator gathered evidence. | a private investigator |
| invisible (adj.) | /ɪnˈvɪzəbl/ | 隐形的 | The wall was almost invisible. | an invisible force |
| involvement (n.) | /ɪnˈvɒlvmənt/ | 参与 | His involvement in the project grew. | community involvement |
| irrelevant (adj.) | /ɪˈreləvənt/ | 不相关的 | That point is irrelevant. | irrelevant information |
| kingdom (n.) | /ˈkɪŋdəm/ | 王国 | The kingdom had a long history. | the animal kingdom |
| landlord (n.) | /ˈlændlɔːd/ | 房东 | She paid rent to her landlord. | a strict landlord |
| landmark (n.) | /ˈlændmɑːk/ | 地标；里程碑 | The tower is a city landmark. | a historic landmark |
| lap (n.) | /læp/ | 圈（比赛）；大腿 | He ran another lap. | a victory lap |
| large-scale (adj.) | /ˌlɑːdʒ ˈskeɪl/ | 大规模的 | It was a large-scale operation. | a large-scale project |
| latter (adj., n.) | /ˈlætə(r)/ | 后者 | Of the two, I prefer the latter. | the latter half |
| lawn (n.) | /lɔːn/ | 草坪 | He mowed the lawn. | a front lawn |
| layout (n.) | /ˈleɪaʊt/ | 布局 | The layout of the house is odd. | a room layout |
| leak (v., n.) | /liːk/ | 泄漏 | The pipe is leaking. | a gas leak |
| leap (v., n.) | /liːp/ | 跳跃 | She took a leap of faith. | a leap forward |
| legacy (n.) | /ˈlegəsi/ | 遗产（非物质） | His legacy lives on. | leave a legacy |
| lengthy (adj.) | /ˈleŋθi/ | 冗长的 | It was a lengthy meeting. | a lengthy process |
| lesbian (adj.) | /ˈlezbiən/ | 女同性恋的 | She's part of a lesbian couple. | a lesbian relationship |
| lesser (adj.) | /ˈlesə(r)/ | 较小的 | It's the lesser of two evils. | to a lesser extent |
| lethal (adj.) | /ˈliːθl/ | 致命的 | It's a lethal weapon. | a lethal dose |
| liberation (n.) | /ˌlɪbəˈreɪʃn/ | 解放 | The country celebrated its liberation. | women's liberation |
| liberty (n.) | /ˈlɪbəti/ | 自由 | They fought for liberty. | take the liberty |
| lifelong (adj.) | /ˈlaɪflɒŋ/ | 终身的 | She's a lifelong learner. | a lifelong friend |
| likelihood (n.) | /ˈlaɪklihʊd/ | 可能性 | There's a high likelihood of rain. | in all likelihood |
| line-up (n.) | /ˈlaɪn ʌp/ | 阵容 | The band announced their new line-up. | a star-studded line-up |
| listing (n.) | /ˈlɪstɪŋ/ | 列表；上市 | The property listing includes photos. | a job listing |
| lobby (n., v.) | /ˈlɒbi/ | 大堂；游说 | We met in the hotel lobby. | lobby for change |
| logic (n.) | /ˈlɒdʒɪk/ | 逻辑 | There's no logic to his argument. | simple logic |
| long-standing (adj.) | /ˌlɒŋ ˈstændɪŋ/ | 长期存在的 | It's a long-standing tradition. | a long-standing rivalry |
| long-time (adj.) | /ˈlɒŋtaɪm/ | 长期的 | She's a long-time friend. | a long-time supporter |
*lifelong*（终身的，强调"一辈子"）、*long-standing*（长期存在的，强调"存在了很久"）、*long-time*（长期的，修饰身份如朋友/支持者）三个词意思接近但搭配对象不同，多读例句体会差异。
Sources
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