形容词
中文翻译：平面的
同义词：
['flat', 'level', 'straight例句：1. The floor is planar and smooth.（地板是平直光滑的。）2. The roof of the house is very planar.（房子的屋顶非常平直。）']
例句：
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1. The floor is planar and smooth.
地板是平直光滑的。
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2. The roof of the house is very planar.
房子的屋顶非常平直。
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3.The car's dashboard is planar and easy to read.
汽车的仪表盘是平直的，易于阅读。