drive home 打(釘子等)敲進去

be eager for sth. 渴求某事物

eat up 使沉迷于;使糾纏于

to the effect that 大意是說

engage in 從事于，參加

enter for 報名參加(比賽)

be envious of 羨慕(或忌妒)

feel envy at 對…感到妒忌(或羨慕)

be essential to 對…不可缺少

in the event that 如果，萬一的

excuse sb. for sth. 原諒某人做了某事

excuse oneself from 借口推托;婉言拒絕

fall back 后退，退卻

fall off 下降，跌落，減少

fall to doing 著手(做)…;開始…

be familiar with 對…熟悉

be familiar to 為…所熟悉

far and wide 四面八方

be favourable to 贊成…

for fear that 以免;生怕，唯恐

be fed up with 對…感到厭煩，膩了

feed in 輸入，進(料)

feel about 摸索，暗中摸索

feel one's way 摸索著走(干)，試探

figure for 謀取，企圖獲取

on file 存檔

fix in with 適合，符合;適應

fix up 治愈(病人);安頓

fool around 閑蕩，浪費時間