When ale (or drink or wine) is in wit is out.    贪杯丧智.
When all men speak no man hears.    人人都讲话，无人去听它.
When an opportunity is neglected, it never comes back to you.    机不可失，时不再来.
When anger blinds the mind, truth disapears.    怒火中烧瞎心眼，真理在前看不见.
When everybody's somebody then nobody's anybody.    人人都伟大，世间没豪杰。
When flatterers meet, the devil goes to dinner.    马屁精会面，魔鬼去赴宴.
When fortune knocks, open the door.    运气来时，莫错过。
When Greek meets Greek, then comes the tug of war.    龙争虎斗.
When guns speak it is too late to argue.    待到炮声响，辩论已莫及.
When in doubt do nowt.    心中无数，不可行动。
"When in doubt leave out.
"    有疑问则驻笔。
When in doubt, play trumps.    举棋苟不定，何妨将一军.
When in Rome do as the Romans do.    入乡随俗.
When in Rome, do as the Romans do.    入国问禁，入乡随俗。
When love puts in, friendship is gone.    爱情入，友谊出.
When one is about to act, one must reason first.    凡事要先思而后行.
When poverty comes in at the door, love flies out at the window.    贫穷进门来，爱情飞窗外.
When riches increase, the body decreases.    财多体衰.
When rogues (or thieves) fall out, honest men come by their own.    盗贼一内哄，好人就自在.
When sorrow is asleep, wake it not.    伤心旧事别重提。
When sorrows come, they come not single spies, but in battalions.    祸不单行.
When stupid man is doing something he is ashamed of, he always declares that it is his duty.    蠢人做件羞愧事，总说义不容辞.
When the belly is full the mind is among the maids.    逸则思淫.饱则思淫欲？
When the belly is full, the bones would be at rest.    饱暖图安逸.
When the cat's away the mice will play.joozone.com