G-4：get back at someone 报复
A:What has happened? You got black and blue in the face.
A:怎么搞的，你的脸上青一块，紫一块的？
B:I fought with Bob.
B：我和鲍勃打架了。
A:Tenible. How come?
A：糟透了，怎么会这样？
B:I don't want to mention it. But I'll get back at him some day.
B:我不想再提了，但总有一天我会报复他的。
