informer
n. 告密者; 通知者
An informer is a person who tells the police that someone has done something illegal.
...two men suspected of being police informers.
被懷疑是警方線人的兩名男子
1. one who reveals confidential information in return for money
Is he merely an informer, giving information to the child?
他只是個教導者, 給孩子知識 嗎 ?
One of the gang members had turned informer.
團夥中的一員後來變成了告密者.
An informer supplied the police with the names of those involved in the crime.
一位告發者向警察局提供了涉及這次犯罪的人員名單.
I would never act as informer against you.
我永遠也不會做對你不利的告密者.
The informer provided very important clues for us.
線人給我們提供了非常有價值的線報.