形容词
中文翻译：光滑的
同义词：
['flat', 'even', 'glassy']
例句：
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1. The surface of the car is smooth as glass.
汽车的表面像玻璃一样光滑。
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2. The floor was smooth and polished to perfection.
地板被打磨得完美无瑕。
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3. The paint on the wall is smooth and reflects light beautifully.
墙上的油漆光滑且反光效果好。