单词 | tractor |
释义 | Word Frequency tractor(ˈtræktə) noun 1. a motor vehicle used to pull heavy loads, esp farm machinery such as a plough or harvester. It usually has two large rear wheels with deeply treaded tyres 2. a short motor vehicle with a powerful engine and a driver's cab, used to pull a trailer, as in an articulated lorry 3. an aircraft with its propeller or propellers mounted in front of the engine Word origin C18: from Late Latin: one who pulls, from trahere to drag |
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