face to face面对面地
face up to大胆面向
fade away渐渐消失;凋零;消瘦,憔悴
fail to未能
fair play公平的竞赛,公平对待,光明磊落
fair back on求助于,转而依靠
fall behind落后
fall in love(with)相爱,爱上
fall in with符合,与…一致;碰见,不期而遇
fall off减少;缩小;跌落,下降;衰退,变坏 fall out争吵;结果是
fall short of达不到;辜负
fall through落空,失败
far from远非,远离
feed in输入
feel like欲,想要
figure out想出,理解,明白;计算出
fill in/out填充,填写
find fault with抱怨,找茬儿,挑剔
fit into适合
flare up突然燃起来;突然发怒
flesh out充实,使有血有肉
focus on(使)聚集,集中;(使)仪器聚焦
for (the) purpose of为了
for a moment片刻,一会儿
for a while暂时,一时
for example例如
for good(and all)永久地
for long长久地
for one thing首先,一则
for short简称,缩写
for sure肯定地,有把握地
for the moment现在,暂时
for the sake of为了…起见,看在…的份上
for the time being目前,暂时
from the bottom up从下到上
from time to time有时,不时