监视, 盯梢
to watch a place or person secretly, especially in order to catch a criminal or to find information
:
• The police decided to stake out the suspect's house.
警方决定监视嫌疑人的房子。
• They had to stake out the area for hours before anything happened.
他们不得不监视该区域数小时，然后才发生任何事情。
