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. 猫儿不在，老鼠造反.
When the ffish is caught the net is laid aside. 鱼获网弃.
When the fight begins within himself a man's worth something, 内心开始斗争时，为人就会有价值.
When the fox preaches, take care of your geese. 佛口蛇心.
When the fruit is scarcest, its taste is sweetest. 物以稀为贵.
When the heart is afire, some sparks will fly out at the mouth. 心中发火，口吐妄言.
When the heart is full,, the tongue will speak. 胸有成竹，口若悬河.
When the sun comes in, the doctor goes out. 阳光入室，医生出屋.
When the well is full, it will run over. 井水满了要溢出.
When the wound is healed, the pain is forgotten. 好了伤疤忘了痛.
When three know it, all know it. 三人知，天下晓.
When two friends have a common purse, one sings and the other weeps. 两友合用一钱包，一个悲来一个笑.
When two ride on one horse, one must sit behind. 两人共骑一匹马，总有一个背后跨.
When war begins then hell opens. 战争一开始，地狱门敞开.
When we have gold we are in fear; when we have none we are in danger. 手头有黄金，惶恐很担心；两手都空空，处在危急中.
When wine is in truth is out. 酒后露真言.
When wine is in truth, wit is out. 酒后吐真言。
When you go to buy, use your eyes not your ears. 你去购买东西时，要用眼睛莫用耳.
"When you're good to others, you are best to yourself.
" 善待他人，即是最善待自己。
Where (or While) there is life there is hope. 留得青山在，不怕没柴烧.
Where drums beat, laws are silent. 战鼓一打，法律无声.
Where love fails we espy all faults. 恋爱一旦遭失败，缺点全都看出来.
Where love is there is faith. 有爱情就有忠诚.
Where might is master, justice is servant. 有强权，就没有正义.
Where passion is high there reason is low. 感情高涨处，理智就低落.
Where the knot is loose the string slips. 结子一松掉，绳子就滑脱.
Where the sun enterd, the doctor does not. 阳光照耀处，医生就不需.
Where there is a will, there is a way. 有志者事竟成。
Where there is a will,, there is a way. 有决心，就有办法.
Where there is life, there is hope. 留得青山在，不怕没柴烧。
Where there is no good within, no good comes out. 没有内心的美，就没有外在的美.
Where there is smoke, there is fire. 事出有因。
Where there's reek there's heat. 无风不起浪.
Where they saw chance, we see law. 以前他们认为是偶然的，现在我们认为是必然的.
Where your will is ready, your feet are light. 下定了决心，脚步就轻盈. 决心一下，脚下生风？
Wherever he is satisfied with what he does, he has reached his culminating point--he will progress no more. 一个人对所做的事感到自满的，就达到了顶点，不会再前进了.
While (or Where) there is life there is hope. 留得青山在，不怕没柴烧.
While the grass grows the horse (or steed) starves. 远水救不了近火.
While the priest climbs a post, the devil climbs ten. 道高一尺，魔高一丈.
While the word is in your mouth, it is your own; when 'tis once spoken, 'tis another's. 话未出口属于己，话一出口属别人.
While there is life there is hope. 一息尚存，希望不灭。