301. in fashion(=stylish, most modern)時興,流行

　　302. after the fashion (of) 依照…

　　303. find fault with(=complain about; criticize)找毛病，對…吹毛求疵

　　304. at fault (=in the wrong, blamable)有錯

　　305. in favour of 贊成

　　306. be in favour with 受寵, 受偏愛; out of favour with 失寵, 不受寵

　　307. in one’s favour(=to one’s advantage)對.有利

　　308. (be) favourable to(=advantageous)有利的

　　309. fear for (=be afraid for the safety of sb. or sth.) 為…擔心

　　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) 擔心

　　312. feed (sb.) on sth. 靠吃…, 用…喂養(yǎng)

　　313. be fed up with(=be unhappy, tired about sth. dull) 厭煩, 膩了

　　314. feel like (=have a desire for) 想要

　　315. fill in 填寫

　　316. fill out ( =fill in )填寫

　　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)干冒險事

　　319. set sth. on fire(=set fire to sth.)使..著火,放火

　　320. at first sight(=when first seen)乍一看,一見

　　321. for the first time 第一次 (作狀語)

　　322. in the first place 首先, 第一

　　323. fit into 剛好放入

　　324. fit in with ( = suit , fall into agreement) 合適, 相配, 一致

　　325. (be) fit for (=right and suitable for) 適合

　　326. focus on (=concentrate on) 集中在…上

　　focus sth. on 把…集中在…上

　　327. be fond of 喜歡

　　328. (be) in force 有效 , 實施

　　329. go into force 開始生效

　　330. by force 靠武力, 強行

　　331. force…on 把…強加給…

　　332. in the form of 以…形式

　　333. be fortunate in 幸運,有好運氣

　　334. free of charge 免費

　　335. be freed from 免受, 沒有…

　　336. in front of 在…前面 in the front of 在…前部

　　337. furnish…with (=supply) 向…提供

　　338. in general (=in most cases, usually)通常

　　339. catch (or get) a glimpse of 瞥見(強調結果) take a glance(or look) at看一眼(強調動作)

　　340. be good for 對…有好處;對…有作用　be good at 擅長于; be good to 對…好

　　341. in good time(=early)早早地(做完.到達等)

　　342. for good (=for ever) 永遠地, 長期地

　　343. take…for granted (=assume to be true) 把…認為理所當然的.

　　344. be grateful to sb. for sth 因…感謝某人

　　345. on the ground(s) fo (=because of) 由于…

　　346. fall to the ground (計劃.希望等)失敗,落空

　　347. on one’s guard(against) 謹防, 警惕 (be) on guard 站崗

　　348. guard against (=defend, keep safe)警惕,防止 guard…against 警衛(wèi)…防止

　　349. guess at 猜, 估計

　　350. by guess 靠猜

　　351. be guilty of 犯有…罪或過失

　　352. be in the habit of 習慣于

　　353. break off (a habit) 改掉(某種習慣)

　　354. break sb. of (a habit)使某人改掉(某習慣)

　　355. get (fall) into the habit of養(yǎng)成了…的習慣

　　356. come to a halt (=stop) 停止; 停住

　　357. at hand 在手邊, 眼前(附近)

　　358. by hand 用手工(做)

　　359. hand in glove(with) 狼狽為奸, 密切合作

　　360. in hand 1)在手邊 2)(=under control)控制住