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单词 builder's jack
释义 builder's jack
noun
1.
 a. : a bracket that rests on a windowsill and projects outside for a worker to stand or sit upon in repairing a window
 b. : a bracket fastened to a wall to support a scaffold
2. : a jack (as a jackscrew) used by builders
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更新时间:2024/9/22 17:32:36