n.旅行者,旅客,[机]移动式起重机,[船](铁杆或缆索上的)活环,带有活环的铁杆
The lorry was travelling at 20mph in the slow lane.
卡车在慢车道上以20英里的时速行驶。
A lorry travelling south had a blow-out and crashed.
一辆南行的卡车爆胎并撞车了。
We spent years travelling around in a rusty old van.
我们多年来都开着一辆生锈的旧货车四处旅行。