名词
中文翻译：线的长度
同义词：
['length', 'length of a line']
例句：
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1. The painter measured the length ofthe wall before painting it.
画家在绘画前测量了墙壁的长度。
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2. Theengineer calculated the length ofthe bridge to ensure safety.
工程师计算了桥梁的长度以确保安全。
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3. Thecarpenter measured the length of thebeam before cutting it.
木匠在切割梁之前测量了其长度。