autopatrol grader

例句：

1. 1. The policeused an autopatrol to monitor the area for any suspicious activity.
   警方使用一辆自动巡逻车来监控该地区，以防任何可疑活动。
2. 2. The autopatrol was equipped with advanced sensors that could detect and track criminals.
   这辆自动巡逻车配备了先进的传感器，可以探测和追踪犯罪分子。
3. 3. The autopatrol was a crucial tool in the city's emergency response system.
   自动巡逻车是城市紧急响应系统的关键工具。