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。
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参考资料:http://www.51netbay.com/bbs/topicdisp.asp?bd=31&id=2077