301. in fashion(=stylish, most modern)时兴,流行 302. after the fashion (of) 依照… 303. find fault with(=complain about. criticize)找毛病，对…吹毛求疵 304. at fault (=in the wrong, blamable)有错 305. in favour of 赞成 306. be in favour with 受宠, 受偏爱. out of favour with 失宠, 不受宠 307. in one’s favour(=to one’s advantage)对.有利 308. (be) favourable to(=advantageous)有利的 309. fear for (=be afraid for the safety of sb. or sth.) 为…担心 310. for fear of (=in case of. because of anxiety about) 以防, 由于怕 311. in fear of (=afraid for the safety of) 担心 312. feed (sb.) on sth. 靠吃…, 用…喂养313. be fed up with(=be unhappy, tired about sth. dull) 厌烦, 腻了 314. feel like (=have a desire for) 想要 315. fill in 填写 316. fill out ( =fill in )填写 317. set the world on fire=set the flames on fire(=do sth. remarkable)有突出成就 318. play with fire (=take great risks)干冒险事 319. set sth. on fire(=set fire to sth.)使..着火,放火 320. at first sight(=when first seen)乍一看,一见 321. for the first time 第一次 (作状语) 322. in the first place 首先, 第一 323. fit into 刚好放入 324. fit in with ( = suit , fall into agreement) 合适, 相配, 一致 325. (be) fit for (=right and suitable for) 适合 326. focus on (=concentrate on) 集中在…上 focus sth. on 把…集中在…上 327. be fond of 喜欢 328. (be) in force 有效 , 实施