traffic/'træfɪk/

n. the vehicles that are travelling on a road

n. [U] 交通；来往车辆：There's always heavy（或a lot of） traffic at this time of day. 每天这个时候交通都很堵。

◇a traffic accident 交通事故

◇a traffic circle 〈美〉环岛

常犯错误

✗ There are many traffics in this street.

✓ There's heavy traffic in this street. 这条街车流量很大。