"Too much of a good thing"

好事过头反成坏事

"Why then, can one desire too much of a good thing?

Come, sister, you shall be the priest¹ and marry us.

Give me your hand, Orlando. What do you say, sister?"

“那么，好的东西会嫌太多吗？

来，妹妹，你来做牧师，给我们主婚。

把你的手给我，奥兰多。你说怎么样，妹妹？” （朱生豪译）

莎士比亚用法：

This phrase may have been a proverb dating to the late 15th century, but Shakespeare was the one who has it immortalized in print.

该短语可能是一句可以追溯到15世纪末的谚语，不过莎士比亚使其变成印刷文字流传下来。

Rosalind is pretending to be a man named Ganymede while she is with Orlando, with whom she is in love. He's also in love with Rosalind — and doesn't know she is Ganymede — and practices how he would woo Rosalind with Ganymede. At one point, Rosalind/Ganymede suggests that they have a pretend wedding, and asks if one can ever have too much of a good thing.

和奥兰多在一起时，罗瑟琳假扮成一个名叫盖尼米德的男人但她已经爱上了奥兰多。奥兰多也爱上了罗瑟琳，但他不知道盖尼米德就是她。他跟盖尼米德一起练习如何追求罗瑟琳。有一次，罗瑟琳（盖尼米德）建议他们举行一场假婚礼，然后问道，是否有人会嫌好东西太多。

现代用法：

Too much good might backfire and be bad.

好事太多反而适得其反，成了坏事。

Source: "As You Like It," Act 4, Scene 1

出处：《皆大欢喜》，第四幕，第一场。