239 expose… to .使。。暴露在。。中； express an opinion 发表意见；express oneself 表达自己的意思
240 keep an eye on 照看；注意 ;an eye for an eye 以牙还牙
241 face to face面对面地 lose one's face 失面子 make a face(faces) 做鬼脸；in the face of 在。。面前
read sb's face 观察某人的脸色
242 in fact=actually=as a matter of fact实际上
243 fade away 退色；消退 ;fail in 在。。。方面失败 ;fair and square 光明正大的
244 fall ill 生病 fall fast asleep很快睡熟 fall behind 落后 fall off 跌落 fall over 跌倒
245 be famous( well-known) for 以。。而著名; be famous( well-known) as … 作为。。而著名
246 fancy oneself as自视为fancy doing sth. 想象做某事 have a fancy for 爱好
247 far from 远非；决非； so far 到目前为止； as far as 就；至于
248 on the farm 在农场
249 put on fat(weight) 长胖
250 find fault with 抱怨；对。。。挑剔
251 do sb.a favour( do a favour for sb.) 帮助某人干…
252 in favour of 赞同
253 for fear of 惟恐； in fear of 担忧 for fear that 为防。。。起见
254 feed oneself 自己吃东西;feed on(=live on) 以。。。为食 feed up (with ) 因多而厌烦
feed… to…用。。。喂养； feed…on/ feed… with 用。。。喂养
255 feel like doing sth. 想要做 ;feel one's way 摸索着走
256 at the fewest 至少； no fewer than 不少于； fight one's way 打开一条路 fight against/with 与。。战斗；
fight for 为。。。而斗争
257 figure out 计算出 figure on 料想；估计
258 fill in 填写 fill…with 用。。。把。。。装满 be filled with 充满了
259 find oneself 在不知不觉中猛然发现
260 finish up 完成
261 catch fire失火 be on fire着火 set fire to 纵火 make a fire 生火
262 hold firm 抓牢 stand firm 站稳立场 be firm( strict) with 对。。。要求严格
263 fix a date for a meeting 确定会议的日期 fix one's eyes on 注视 fix one's mind/attention on 集中某人的思想/注意力于。。。
264 be in flower 开花（状态）come into flower 开花（动作）
265 focus one's attention/thoughts/efforts on 集中注意力于
266 as follows 如下; follow(take)sb.'s advice 听某人的建议 follow the example of 以。。。为榜样
267 make a fool of sb. 愚弄某人；fool sb. into doing sth.哄骗某人干某事
268at the foot of 在。。。脚下 ;rise to one's feet 站起来
269 be for 赞成 be against 反对 for a time暂时；一度 for one thing…for another 一方面。。。另一方面；
for the moment=for the time being 暂时
270 by force 强迫地 ;put…in(into) force 实施 force sb. to do sth. 强迫某人做某
271 forget +doing/having done/to have done 忘记曾经做过某事；forget to do 忘记要做某事
272 forgive sb. for(doing) sth. 宽恕某人干
273 fill out(in) a form 填表；in the form of 以。。。形式
274 the former…the latter 前者。。。后者
275 be fortunate in 在。。。方面很幸运; try one's fortune碰运； make a fortune 发财
276 be/feel free to do sth. 自由地做某事;be free from 不受影响 ;be free from danger 脱离危险 ;set free 释放;
get sth. for free 免费获得某物; 免费 free of charge 在in one's free/spare time 某人闲暇时间
277 make friends with 与。。交朋友 be friendly to sb. 对某人很友好
278 be frightened at( of doing) sth.对。。感到恐惧 frighten sb. into doing sth. 威胁某人做某事
279 be made of由。。制成（看得出原材料）； be made from由。。制成（看不出原材料）；
be made in 产于某地 be made up of 由。。组成
280 in front of 在。。前面（在范围之外）；in the front of 在。。。的前部分（在范围之内）
281 be full of=be filled with 充满 ;
