名词中文翻译
中文翻译：梯子标记
同义词：
['ladder notation', 'ladder line', 'ladder mark']
例句：
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1. The engineer used a ladder toclimb up the tall building.
工程师使用梯子爬上了高楼。
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2. The painter carefully marked theladder with different colors.
画家小心地用不同颜色在梯子上做了标记。
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3. Theconstruction workers were using ladder markings toidentify the safest route.
建筑工人正在使用梯子标记来识别最安全的路线。