face to face 面对面地
face up to 大胆面对
in the face of 面对，在…面前;不顾，即使
make a face 做鬼脸
in fact 其实，实际上
matter of fact 实际情况，真相
fail to 未能
fall behind 落后
fall back on 求助于，转而依靠
fall in with 符合，与…一致;碰见
fall out 争吵，结果是
fall through 落空，失败
as far as/so far as 原至，到…程度
by far …的.多，最
far from 远非，远离
so far 迄今为止
find fault 埋怨，挑剔
in favor of 有利于，便于，赞成，支持
feed in 输入
be fed up (with) 感到厌烦
feel like 欲，想要
a few 有些，几个
quite a few 还不少，有相当数目的
fill in/out 填充，填写
find out 查明
catch fire 着火
set fire to 点燃
on fire 烧着
at first 最初，首先
first of all 首先，第一
flare up 突然烧起来，突然发怒
as follows 如下
make a fool of 玩弄，愚弄
on foot 步行
in force 有效，实施中
come/go into force 生效，实施
and so forth 等等
set free 释放
make friends 交朋友，友好相处
be friends with 对…友好，与…交上朋友
to and fro 来来回回
in front of 在…面前
make fun of 取笑，嘲弄
make a fuss of 娇养(某人)，过分关怀(某人)
in (the) future 今后，将来
学识谷
