Dialogue：

A: John beat me black and blue yesterday.

约翰把我打得鼻青脸肿。

B: Why?

为什么？

A: Because I told the teacher about his cheating in the exam.

因为我告诉老师他考试作弊。

B: He goes too far.

他太过分了。

A: I'm determined to pay him back in his own coin.

我想以牙还牙。

B: You can never do that.

你千万别那么样。

一， 词海拾贝

pay someone back him one’s own coin（以其人之道还治其人之身，以牙还牙）

e.g. He was determined to take revenge; to pay them back in their own coin for the wrongs they had done to him.

他发誓要报复——他们对他做了那么多坏事，他要以其人之道还治其人之身。

e.g Last time I went to see him, he gave me a cool reception. And today I am going to pay him back in the his coin.

他在上次我去看他时，他待我很冷淡，所以我今天要以其人之道还治其人之身。

e.g. My boyfriend always arrives late. Last night I decided to pay him back in his own coin by keeping him waiting for half an hour.

因为我的男朋友约会总是迟到，所以我昨晚决定以牙还牙治他一下，让他等了半小时。

e.g. I told her if she did me any harm I would pay her back in her own coin for tat.

我告诉她如果她伤害我，我会对她以牙还牙的。

二， 语汇积累

1. black and blue ：遍体鳞伤的，青一块紫一块的

e.g. He said he'd cowhide me till I was black and blue if I didn't raise some money for him.

他说要是我不弄点钱给他，他就得把我揍得浑身发青发紫。

e.g. The smugglers pounced on him and beat him black and blue.

走私贩们一拥而上，把他打得遍体鳞伤。

2. cheat in the exam：考试作弊

e.g. Geroge cheated in the science exam.

乔治在自然科考试中作弊。

e.g. The professor was angry at John for cheating in the exam.

教授对约翰考试作弊十分气恼。

3. go too far：做得过分

e.g. Don' t go too far in the matter, you may get into trouble if you do.

这件事别做得太过分了，否则你会招来麻烦的。