英语语法分析

One of the gang members had turned informer.

团伙中的一员后来变成了告密者。

Prentice saw Goss fall in behind the informer.

普伦蒂斯看见戈斯走在密探身后。

The police has informer in the London underworld.

警察在伦敦的下流社会中有告密者。