Detectives had been staking out the house for several weeks.
侦探们已对这所房子监视了几个星期。
《牛津词典》
2
The detectives resumed their vigil at the house.
侦探们又开始在那楝房子警戒了。
3
If detectives on the scene have begun witness interviews, they may offer details that point the CSI to a particular room of the house or type of evidence.