形容词
中文翻译：平滑的
同义词：
['flat', 'even', 'glossy例句：1. The surface of the car is smooth as glass.（汽车的表面像玻璃一样平滑。）']
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平滑。
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2.The paint on the wall has a smooth finish.
墙上的油漆表面光滑。
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3.The road was so smooth that it felt like walking on water.
路非常光滑，感觉像是走在水上。