警车的用法和样例：
例句
-
我被推进警车。
I was bundled into a police van. -
一辆警车开到我身边示意我停下来。
A police car drew alongside and signalled to me to stop. -
二人举手拦下一部警车。
The two flagged down a police car ... -
那伙歹徒听到警车声便逃跑了。
The gang took (to) flight when they heard the police car. -
他朝大路跑去，见到警车时立即停了下来，然后折身转回胡同里去了。
He ran down towards the main road, stopped short when he saw the police car and doubled back up the alley.
