L-3：lay a finger on 加害

　　A:I'm really pissed.

　　A:真是气死我了。

　　B:Why? Tell me what's the matter.

　　B：怎么啦?给我说说看。

　　A:I am angry with Tom again.

　　A：汤姆又惹我生气了。

　　B:Why do you often get angry with Tom?

　　B：你为什么老生他的气?

　　A:He always makes mistakes.

　　A:他总是犯错误。

　　B:After all, he is only a child. If you lay a finger on him, I'll leave you.

　　B：他毕竟还是个孩子，你要动他一根毫毛，我就离开你。