名词
中文翻译：Unknown
同义词：
['line adjustment', 'line straightening']
例句：
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1. The engineer used a laser to line the roof for the new addition.
工程师使用激光来为新建筑的屋顶划线。
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2. The carpenter carefully lined up the wooden planks for the shelves.
木匠仔细地将木板对齐，为书架做准备。
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3. During construction, it's important to ensure that all lines are properly justified.
在施工过程中，确保所有线条都正确对齐是很重要的。