校园巡逻员每天都会检查各个角落以确保安全。

The school ___patrollers check every corner daily to ensure safety.

巡逻队员们在夜班期间发现了可疑活动。

The ___patrollers spotted suspicious activity during their night shift.

警方使用巡逻车在夜间监视这个社区。

The police use ___patrollers to monitor this neighborhood at night.