They attached the trailer to the car. 他们把拖车挂在汽车后面。
He transports his boat by putting it on a trailer behind his car. 他将小艇放在汽车后面的拖车上运输。
This paper introduces the control system design of the medical oxygen generator in the field trailer. 介绍了野战制氧挂车医用制氧设备控制系统的设计。
A motor vehicle with space and equipment,either in a rear compartment or in an attached trailer,for sleeping and simple housekeeping,used for camping and recreational travel. 野营挂车一种带有空间和装备动力交通工具,装在后部的空室或是装在相连的拖挂车内,提供睡眠和做简单的家务,用于野营和消闲的旅行。