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　　Don''t have thy cloak to make when it begins to rain. 切莫临时抱佛脚。

　　Don''t keep all your eggs in one basketball.勿孤注一掷。

　　Don''t put off till tomorrow what should be done today. 今日事，今日毕。

　　Don''t speak all you know, but know all you speak. 不要尽言所知，而要尽知所言。

　　Don''t teach your grandmother to suck eggs. 休要班门弄斧。

　　Don''t throw out your dirty water before you get in fresh. 清水未打来，赃水莫倒掉。

　　Don''t trouble trouble until trouble troubles you. 不要自寻烦恼。

　　Don''t whistle until you are out of the wood. 没有脱离险境，不要过早高兴。

　　Do one''s level best. 尽力而为。

　　Dot the i''s and cross the t''s. 一点一划，循规蹈矩。

　　Doubt is the key of knowledge. 怀疑乃知识的钥匙。

　　Do well is better than say well. 说得好不如做得好。

　　Downy lips make thoughtless slips. 嘴上没毛，办事不牢。

　　Draw not your bow till your arrow is fixed. 事未齐备，切莫妄动。

　　Draw water with a sieve. 竹篮子打水一场空。

　　Dream are lies. 梦不足信。

　　Dreams go by contraries. 梦想总与现实相反。

　　Drive your business, do not let it drive you. 要推动事业，不要让事业来推动你。

　　Drop by drop the oceans are filled; stone by stone the walls are built. 滴水汇大海，垒石诛高墙。

　　Drowning man will catch at a straw. 溺水的人一根草也要抓。

　　Drunken days have all their tomorrows. 今日花天酒地，明日潦倒穷途。

　　Drunkenness reveals what soberness conceals. 酒后露真言。

　　Dumb dogs are dangerous. 哑犬凶恶。

　　Dying is as natural as living. 死亡与生存一样自然。