nightstick

1. (美国警察携带的)警棍
   A nightstick is a short thick club that is carried by policemen in the United States.

in BRIT, use 英国英语用 truncheon

1. I'll be unnecessary use of my nightstick on your thick skull if you don't let him go.
   如果你不放开他，我会不必要地，在你地头上使用警棍。
2. The cop pulled the guy out of the car and hit him with a nightstick for about a minute and then said," Would you like for me to stop or just slow down?"
   于是警察把这个人从车里拽出来，用警棍打了他一会儿，然后说：“你是想让我停止还是只是减减速呢？”
3. The lights were flashing as the officer strode from the police car, hat on her head, pistol at her side, nightstick keeping time on her leg.
   戴著帽子、配著手枪、以警棍在大腿打著拍子的警察从闪著灯的警车出来。

noun

1. a short stout club used primarily by policemen

   Synonym:    truncheonbatonbillybillystickbilly club