someone who sees an event and reports what happened 同义词：witness, witnesser,
An informant is a person who provides privileged information about a person or organization to an agency. The term is usually used within the law enforcement world, where they are officially known as confidential or criminal informants (CI), and can often refer pejoratively to the supply of information without the consent of the other parties with the intent of malicious, personal or financial gain.
例句与用法
1.
The informant is expected to provide the information about the deceased . 希望义务报告人提供关于死者的情况。
2.
The journalist did not want to reveal the identity of his informant . 那个新闻工作者不想透露消息提供人的身分。
3.
The "report" could only have come from shishayev, who obviously was pronnikov's informant . 这份报告只能出自沙耶夫之手，他显然是普洛尼科夫的一个告密者。
4.
Now that i ' ve been exonerated by your informant , 你的情报来源证明了我是清白的
5.
You mean , wait until all five informants are dead 你是说等到五个告密者都死掉
6.
Informant s hong kong identity card travel document 申报人的香港身份证旅行证件。
7.
We can at least find the identity of the informants 我们至少可以知道告密者的身份
8.
Not really . he ' ll introduce us to an informant , 不清楚他会介绍我们给提供情报的人
9.
It seems that every person he knew was an informant 好像每个认识他的人都是告密者
10.
We can identify the informants in a few days 我们不要几天就能发现这些告密者的身份
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