A bad beginning makes a bad ending.
恶始必有恶终

A bad padlock invites a picklock.
坏锁招人撬。

A bad penny always comes back.
伪币迟早归原主。

A bad workman quarrels with his tools.
人笨怨刀钝。

A baited cat may grow as fierce as a lion.
被逼急的猫，凶得像狮子。

A barely-corn is better than a diamond to a cock.
对于公鸡来说 ,麦粒胜过钻石.

A bargain is a bargain.
成约不能翻悔。

A beard well lathered is half shaved.
皂沫涂得好 ,胡须半剃掉. /磨刀不误砍柴工.
英语谚语

A beggar can never be bankrupt.
乞丐永远不会破产。

A belly full of gluttony will never study willingly.
吃得过饱，懒得学习。

A big wind can blow through a small hole.
针尖大的窟窿，斗大的风。

A bird in the hand is worth two in the bush.
双鸟在林 ,不如一鸟在手。

A bird is known by its note, and a man by his talk.
闻声知鸣鸟，闻言见人心。

A bit in the morning is better than nothing all day.
上午有一点收获 ,总比全天无收获好.

A black plum is as sweet as a white.
黑梅白梅一样甜。

A blind man will not thank you for a looking-glass.
瞎子不谢赠镜人

A blunt knife may be sharpened on a stone, but if a man is stupid there is no help for his stupidity.
刀钝石上磨，人蠢没奈何。

A boaster and a liar are all one.
吹牛撒谎一家亲。

A boisterous horse must have a boisterous bridle.
烈马要套上好辔头。

A bonny bride is soon buskit [=dressed].
美丽的新娘好打扮

A book is a success when people who haven't read it pretend they have.
一本书如果没有看过的人也冒充看过，便是成功的。

A book that is shut is but a block.
有书不读如藏木

A bow long bent at last waxes weak.
良弓张久必驰

A bow long bent grows weak.
常拉满弓无力。

A brave man may fall, but he cannot yield.
勇者可能跌倒 ,但不会屈服.

A brave man risks his life, but not his conscience.
勇敢的人可用生命冒险，但不以良心冒险。
[德]Schiller 席勒

A bribe will enter without knocking.
贿赂毋须敲门而入。

A bride is diligent for three days.
新娶媳妇三日勤