tractor trailer

柯林斯词典

tractor-trailer (tractor-trailers)

• 1. N-COUNT A tractor-trailer is a large truck that is made in two separate sections, a tractor and a trailer, which are joined together by metal bars. 牵引式挂车[美国英语]

  Driving a tractor-trailer is not an easy job. 驾驶一辆牵引式挂车不是一项容易的工作。

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