/ˈtræfɪk ||; ˈtræfɪk/noun[U] 1 all the vehicles that are on a road at a particular time 路上的车辆: heavy/light traffic 路上车辆很多╱不多We got stuck in traffic and were late for the meeting. 我们因交通阻塞，开会迟到了。
2 the movement of ships, aircraft, etc 水上交通；空中交通: air traffic control 空中交通管制
3 traffic (in sth) the illegal buying and selling of sth 非法买卖:
the traffic in drugs/firearms 非法买卖毒品╱枪械
traffic verb [I] (
present participle trafficking;past tense past participle trafficked)
traffic (in sth) He was arrested for trafficking in drugs. 他因贩毒而被捕。 ➔trafficker noun [C]: a drugs trafficker 毒品贩子