交警的英文：
traffic policeman

参考例句：

traffic police box
交警岗亭

traffic是什么意思：
n. 交通；买卖；非法交易；运输，人流，货流；电信
v. 在...上通行；做…买卖

The traffic discords.
交通噪音刺耳。

Traffic lane contraction, Traffic Land Reduction
车道缩减

The dense fog paralyzed the traffic.
浓重的大雾使得交通完全中断。

I have no traffic with him.
我和他没有什么交往。

traffic pattern altitude
起落航线高度

policeman是什么意思：
n. （男）警察

The policeman figured the features of the criminal.
这个警察描述了这个罪犯的特征。

a policeman's beat
警察的巡逻路线

The robber was shot dead by the policeman.
那强盗被警察击毙了。

The policeman caught the thief.
警察逮住了小偷。

The thief ran slap into a policeman.
那贼与警察撞了一个满怀。