形容词
中文翻译：光滑的
同义词：
['smooth', 'smoothing', 'fluent', "fluid例句：1. The car's engine is smooth and powerful.（这辆车的引擎既平稳又有力。）"]
例句：
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1. The car's engine is smooth and powerful.
这辆车的引擎既平稳又有力。
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2. The road was smooth as glass.
路像玻璃一样平滑。
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3.Her speech was smooth and articulate.
她的演讲流畅且有条理。