名词
中文翻译：地板线
同义词：
['floor surface', 'floor level', 'horizontal plane']
例句：
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1. Thearchitect drew a floor line for the new office building.
建筑师为新办公楼画了一条地板线。
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2. The engineer measured the floor line to ensure the structure was stable.
工程师测量了地板线以确保结构稳定。
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3.The carpenter marked the floor line where the door would be installed.
木匠在门将被安装的地方标记了地板线。