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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:2025/3/4 5:03:07