hair stand on end：That weird-looking person really makes my hair stand on end. (get goose bumps; make one's flesh creep)
打落水狗
to hit a person when he's down
打铁趁热
Strike while the iron is hot.(Make hay while the sun is shining.)
打抱不平
He often bullies you. I really take up the cudgel for you.
打草惊蛇
Let's stay here in order not to wake a sleeping dog. (wake a sleeping lion/woof)
犯错是人之常情，宽恕是超凡的 To err is human; to forgive divine.
平白无故
without rhyme or reason：Don't take others' money without rhyme or reason. (without provocation)
白费唇舌
to waste your breath on him
生于忧患，死于安乐
Adversity spurs vitality, while comfort breeds sloth.
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永垂不朽
The general's name will be always remembered and eternally immortal.
四大皆空 All is vanity.
四海之内皆兄弟
All are brothers within the four seas.
四面八方
These folks come from in all directions (far and wide; there and everywhere; length and breadth)
四海为家
I don't know where Jack is now; in my mind, he is a person who is here today and gone tomorrow.
未雨绸缪
take precautions before it is too late
目不识丁
not know A from B / an illiterate
失败为成功之母
Failure is the mother of success.
失之毫厘，差之千里
A miss is as good as a mile.
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只要功夫深，铁杵磨成针 Little strokes fell great oaks.
毛遂自荐
to recommend one's own person
世界末日
Don't be so depressed. It's not Doomsday.
半斤八两
Tweedledum and Tweedledee：John is no better than Peter. They are just Tweedledum and Tweedledee. (six of one and half a dozen of the other)
半信半疑
half in doubt：A: Jimmy will invite you to dinner tonight? B: No, I don't think so. I will take it half in doubt. ( take with a grain of salt)
石沉大海
I couldn't find her. It seemed that her whereabouts sank into oblivion.
左右逢源
It appears that everything goes well with him.
司空见惯
order of the day：The situation is already order of the day. (par for the course)
目瞪口呆
She was already tongue-tied, and didn't know what to do. (lose one's tongue; struck dumb; stunned and speechless)
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目光如豆
He is a person who sees no further than his nose.
出尔反尔
He is not a guy worthy of our trust. He often goes back on his word. (blow hot and cold)
出口成章
He is a learned person. His tongue is the pen of a ready writer.
平分秋色
He did quite well, but I still think his is one equal terms with her.
平步青云
What an amazing thing! He should make a smashing hit in a short time. (beat the top of the ladder; come to the top over night; hit the jackpot)
平易近人
He is a person easy to get along with. (be well disposed; have a taking way with one have the common touch)
未雨绸缪
Don't take everyting for granted. It's better for you to lay up against a rainy day. (prepare for a rainy day)
功败垂成
a slip betwixt cup and the lip：I hate to tell you that your plan is a slip betwixt cup and the lip.
可歌可泣
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His sacrifice for the country set us in a melting mood.
本末倒置
Don't put the cart before the horse.
甘拜下风
Would you like to play with me again? No, I'd rather play second fiddle.
甘之如饴
gladly endure hardship
世外桃源
Switzerland is like Utopia, which I always dream of visiting.
出人头地
Through his hard work, he finally came to the fore.
出类拔萃
John towers above the rest in math. (in a class by itself; out of the common run)
史无前例
without precedent （in history）：His excellent performance at that play is without precedent in history.
令人发指
His cruelty to animals make our hair stand on end.
令人咋舌
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