名词
中文翻译：光滑的
同义词：
['smooth', 'glossy', 'shiny例句：1. The car was very coaly when it was new.（这辆车很新的时候非常光滑。）']
例句：
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1. The car was very coaly when it was new.
这辆车很新的时候非常光滑。
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2.The floor is coaly and easy to clean.
地板光滑且易于清洁。
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3. The paint on the wall is very coaly, making it difficult to see the details.
墙上的油漆非常光滑，使得细节难以辨认。