320. in the end 最后,终于
321. in the event of 如果...发生,万一
322. in the face of 即使;在...面前
323. in the first place 首先
324. in the future 在未来
325. in the heat of the day 一天中最热的时候
326. in the least 丝毫,一点
327. in the long run 长期
328. in the way 挡道
329. in the world 究竟,到底
330. in time 及时
331. in touch 联系,接触
332. in turn 依次,轮流;转而
333. in vain 徒劳,白费力
334. indifferent to无兴趣,不关心
335. indignant with sb.愤慨
336. inferior to级别低于,不如
337. innocent of无...罪,无辜
338. instead of 代替,而不是
339. intent on专心于
340. invisible to不可见的
341. jealous of嫉妒
342. just now 眼下;刚才
343. keep one's eyes on关注
344. keep on爱好,很喜欢
345. keep track of 留心
346. kind of / sort of有点somewhat
347. lay off 下岗
348. leave alone别说
349. let the cat out of the bag泄露秘密
350. liable for对...有责任
351. liable to易于
352. little by little 逐渐地
353. look for / hunt for 找工作
354. lost the point弄错
355. lots of 许多
356. loyal to忠于
357. mad about/on狂热迷恋
358. mad at/with sb.生气,愤怒
359. mad with因...发狂
360. make (both) ends meet收支平衡
361. make a living谋生
362. make it成功
363. make the best / most of充分利用
364. many a 许多
365. mark the papers 批改考卷
366. mayor / minor in
367. meet one's needs满足要求
368. might as well不妨
369. mistake a for b 认错
370. more or less 或多或少,有点
371. my treat我请客
372. narrow escape九死一生
373. necessary to /for必要的
374. next door 隔壁的,在隔壁