trafficlessadj.无通信的trafficn.（人或车等）交通流量；不正当生意（走私）v.做生意（多指违法的）；游览traffic direction block system运转方向阻塞系统traffic restoration capability业务恢复能力Traffic Data Collection System交通数据收集系统traffic-unit price procedure按业务量单位计费的方法traffic engineering facilities变通工程设施traffic equilibrium assignment均衡交通分配traffic accident black-spots交通事故黑点traffic environmental capacity交通环境容量Traffic backed up for miles.数英里内交通都阻塞了。traffic signals control system交通信号控制系统