His informants were middle-class professional women.
他的合作者是中产阶级职业妇女。
What most people call nosy people are our best informants.
消息恰恰是来自于那些被我们称做“饶舌”的人。
He had little doubt that they were confidential informants of the police.
他们是警方的秘密线人，他对此毫不怀疑。
The use of informants detection has become an important means in investigation practice.
利用线人破案已成为各国侦查实践中的重要手段。
The use of informants detection has become an important means in investigation practice.
利用线人破案已成为各国侦查实践中的重要手段。
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