a close mouth catches no flies. 病从口入。

12.a constant guest is never welcome. 常客令人厌。

13.actions speak louder than words. 事实胜于雄辩。

14.adversity leads to prosperity. 穷则思变。

15.adversity makes a man wise, not rich. 逆境出人才。

16.a fair death honors the whole life. 死得其所，流芳百世。

17.a faithful friend is hard to find. 知音难觅。

18.a fall into a pit, a gain in your wit. 吃一堑，长一智。

19.a fox may grow gray, but never good. 江山易改，本性难移。

20.a friend in need is a friend indeed. 患难见真情。

21.a friend is easier lost than found. 得朋友难，失朋友易。

22.a friend is never known till a man has need. 需要之时方知友。

23.a friend without faults will never be found. 没有十全十美的朋友。

24."after you" is good manners. “您先请”是礼貌。

25.a good beginning is half done. 良好的开端是成功的一半。

26.a good beginning is half done. 善始者善终。

27.a good book is a good friend. 好书如挚友。

28.a good book is the best of friends, the same today and forever. 一本好书，相伴一生。

29.a good conscience is a soft pillow. 不做亏心事，不怕鬼叫门。

30.a good fame is better than a good face. 美名胜过美貌。

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

2.a bad thing never dies. 遗臭万年。

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

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

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

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6.a bully is always a coward. 色厉内荏。

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

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

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9.a cat has 9 lives. 猫有九条命。

10.a cat may look at a king. 人人平等。