| 单词 | semitrailer |
| 释义 | semitrailer /sem"i tray'leuhr/, n. 1. Also called semi. a detachable trailer for hauling freight, with wheels at the rear end, the forward end being supported by the rear of a truck tractor when attached. Cf. full trailer. 2. tractor-trailer. [1915-20; SEMI- + TRAILER] |
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