fallible adj 易錯的
famish vt 使挨餓
ferocious adj 兇猛的(savage,bestial)
ferret vt 搜索(search)
fervent adj 白熱的,強烈的(ardent)
fester vt 化膿(decay)
fetter vt 束縛(restrict,inhibit)
feud n 世仇,vt 不合
fickle adj 多變的(changeable,capricious)
fidelity n 忠誠(loyalty,faithfulness)
finch n 鳴禽
fitful adj 一陣陣的,斷續(xù)的
fitting adj 適當?shù)模琻 配合(proper,appropriate)
flay vt 剝……的皮
flicker vt 閃爍(flutter,waver)
flighty adj 輕浮的(fickle,capricious)
flimsy adj 脆弱的,薄弱的(thin)
flora n 植物界
flounder vt 掙扎,躊躇
fluffy adj 絨毛的
fluster vt 使慌亂(confuse,disconcert)
foe n 敵人(enemy,adversary)
foil vt 阻止
forlorn adj 絕望的,被遺棄的(wretched,lonely)
forsake vt 遺棄,拋棄,摒絕(abandon,desert)
forte n 長處(strong point,specialty)
fortify vt 加強(strengthen,reinforce)
fortitude n 堅忍,剛毅(endurance,courage)
fortress n 堡壘,要塞
fortuitous adj 偶然的,意外的(accidental,coincidental)
foul adj 違規(guī)的,邪惡的(filthy,rotten)
fraction n 片斷,分數(shù)(part,bit)
fragile adj 脆的,體質弱的
fragment n 碎片,破片(piece,scrap)
fraternal adj 兄弟般的,友愛的(brotherly,cordial)
fraudulent adj 欺詐的,不誠實的(deceitful,dishonest)
fraught adj 充滿的(full of)
friction n 摩擦(wear and tear)
frigid adj 嚴寒的,冷淡的(icy,freezing)
frugal adj 節(jié)約的(thrifty,economical)
fulminate vt 猛烈爆發(fā)(explode)
further v 促進,增進,adj 更多的(advance,promote,additional)
fuzzy adj 有絨毛的,絨毛狀的(frizzy,downy)