A bad beginning makes a bad ending.
不善始者不善终。

A bad thing never dies.
遗臭万年。

A bad workman always blames his tools.
不会撑船怪河弯。

A bird in the hand is worth than two in the bush.
一鸟在手胜过双鸟在林。

A boaster and a liar are cousins-german.
吹牛与说谎本是同宗。

A bully is always a coward.
色厉内荏。

A burden of one's choice is not felt.
爱挑的担子不嫌重。

A candle lights others and consumes itself.
蜡烛照亮别人，却毁灭了自己。

A cat has 9 lives.
猫有九条命。

A cat may look at a king.
人人平等。