trailer

n. 追踪者,拖车
电影预告片

That's a car with a trailer hitched on to it at the back of the road.

路上有一辆背后挂着一辆拖车的汽车。

The tractor took up the slack and pulled the trailer out of the mud.

拖拉机拉紧拖缆把拖车从泥中拉了出来.