外国人翻译汉语成语：万全之策等

　　11. Of all the stratagems, to know when to quit is the best.

　　12. Once on a tiger's back, it is hard to alight.

　　13. One monk shoulders water by himself; two can still share the labor among them. When it comes to three, they have to go thirsty.

　　14. Paper can't wrap up a fire.

　　15. A smile will gain you ten more years of life.

　　16. A sly rabbit will have three openings to its den.

　　17. Some prefer carrot while others like cabbage.

　　18. Steal a bell with one's ears covered.

　　19. There are always ears on the other side of the wall.

　　20. Vicious as a tigress can be, she never eats her own cubs.