to spy on
[phrase form: spy]
01
监视, 暗中观察
to secretly observe someone or something with the intention of gathering confidential or hidden information
例子
The detective decided to spy on the suspect to gather evidence for the case.
侦探决定监视嫌疑人以收集案件证据。
The government agency was accused of hiring agents to spy on its citizens without their knowledge.
该政府机构被指控雇佣特工在公民不知情的情况下监视他们。
