Hope for the best, but prepare for the worst.

　　抱最好的愿望，做最壞的打算。

　　Hungry dogs will eat dirty puddings.

　　饑不擇食。

　　I cannot be your friend and your flatterer too.

　　朋友不能阿諛奉承。

　　If a man deceives me once, shame on him, if he deceives me twice, shame on me.

　　上當一回頭，再多就可恥。

　　If a thing is worth doing it is worth doing well.(如果事情值得做就值得做好。)

　　If you make yourself an ass, don't complain if people ride you.

　　人善被人欺，馬善被人騎。

　　If your ears glow, someone is talking of you.

　　耳朵發燒，有人念叨。

　　If you run after two hares, you will catch neither.

　　腳踏兩條船，必定落空。

　　If you sell the cow, you sell her milk too.

　　殺雞取卵。

　　If you venture nothing, you will have nothing./ Nothing brave, nothing have./ Nothing venture, nothing win.

　　不入虎穴，焉得虎子。

　　If you want knowledge, you must toil for it.要想求知，就得吃苦。

　　In a family way.

　　像一家人一樣隨便。

　　In at one ear and out at the other.

　　一耳進一耳出。

　　In deep water.

　　在水深火熱中。

　　In doing we learn.

　　實踐長才干。

　　Industry is the parent of success.

　　勤奮是成功之母。

　　In hot water.

　　處于困境。

　　In the same boat with

　　與….境遇相同

　　It is better to die when life is a disgrace.

　　寧為玉碎，不為瓦全。

　　It is easier to get money than to keep it.

　　掙錢容易攢錢難。

　　It is easy to be wise after the event.

　　事后諸葛亮好當。

　　It is easy to open a shop but hard to keep it always open.

　　創業容易守業難。

　　It is hard to please all.

　　眾口難調。

　　It is never too old to learn./ Live and learn.

　　活到老，學到老。

　　It's never too late to mend.(過而能改，善莫大焉;亡羊補牢，猶未晚也。)

　　It is no use crying over spilt milk.

　　覆水難收。

　　It’s six one way, half a dozen the other.

　　半斤八兩。基本上一樣。

　　It is the first step that costs troublesome.

　　萬事開頭難。

　　It is the unforeseen that always happens.

　　天有不測風云，人有旦夕禍福。

　　It is too late to grieve when the chance is past.

　　坐失良機，后悔已遲。

　　It never rains but it pours.

　　不鳴則已，一鳴驚人。

　　It takes three generations to make a gentleman.

　　十年樹木，百年樹人。

　　Jack of all trades and master of none.

　　門門精通，樣樣稀松。/雜而不精的人。/三腳貓。

　　Judge not from appearances.

　　人不可貌相，海不可斗量。

　　Justice has long arms.

　　天網恢恢，疏而不漏。

　　Keep good men company and you shall be of the number.

　　近朱者赤，近墨者黑。

　　Kill two birds with one stone.

　　一箭雙雕。 /一舉兩得

　　Kings go mad, and the people suffer for it.

　　君王發狂，百姓遭殃。

　　Kings have long arms.

　　普天之下，莫非王土。

　　Knowing something of everything and everything of something.(通百藝而專一長。)

　　Knowledge is power.

　　知識就是力量。

　　Knowledge makes humble, ignorance makes proud.

　　博學使人謙遜，無知使人驕傲。

　　Laughter is the best medicine.

　　笑聲是最佳良藥.

　　Learn and live.

　　活著，為了學習。

　　Learning makes a good man better and ill man worse.

　　好人越學越好，壞人越學越壞。

　　Learn not and know not.

　　不學無術。

　　Learn to walk before you run.

　　先學走，再學跑。

　　Leniency to those who confess and punishment to those who reject.

　　坦白從寬，抗拒從嚴。

　　Let bygones be bygones./Forget about the past wrongs.

　　過去的就讓它過去吧。

　　Let sleeping dogs lie./Don’t wake up the sleeping dogs.

　　別惹麻煩。

　　Let the cat out of the bag.

　　泄漏天機。

　　Lies can never changes fact.

　　謊言終究是謊言。

　　Lies have short legs.

　　謊言站不長。

　　Life is but a span.

　　人生苦短。

　　Life is half spent before we know what it is.

　　人過半生，方知天命。

　　Life is not all roses.

　　人生并不是康莊大道。

　　Lifeless, faultless.

　　只有死人才不犯錯誤。

　　Life without a friend is death.

　　沒有朋友，雖生猶死。

　　Like a drowned rat.

　　像落水狗一樣。

　　Like a rat in a hole.

　　甕中之鱉。

　　Like author, like book.

　　文如其人。

　　Like begets like./Like father, like son.

　　有其父，必有其子。

　　Like for like.

　　一報還一報。

　　Like knows like./Like attracts like.

　　惺惺相惜。

　　Like mother, like daughter.

　　有其母必有其女。

　　Like teacher, like pupil.

　　什么樣的老師教什么樣的學生。

　　Like tree, like fruit.

　　羊毛出在羊身上。

　　Little things amuse little minds.

　　小人無大志。

　　Live and learn.

　　活到老，學到老。

　　Long distance separates no bosom friends.

　　海內存知己，天涯若比鄰

　　Look before you leap./Think twice before you do(act)./ To think twice.

　　摸清情況再行動。 /三思而后行。

　　Lookers-on see more than players.

　　當局者迷，旁觀者清。

　　Look for a needle in a haystack.

　　大海撈針。

　　Losers are always in the wrong.

　　勝者為王，敗者為寇。

　　Lost time is never found again.

　　歲月既往，一去不回。

　　Love at first sight.

　　一見鐘情。

　　Love cannot be compelled.

　　愛情不能強求。

　　Love is blind.

　　愛情是盲目的。

　　Love is full of trouble.

　　愛情充滿煩惱。

　　Love is never without jealousy.

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