名词中文翻译
中文翻译：平滑
同义词：
['smoothing', 'smoothness例句：1. The surface of the glass is very smooth.（玻璃的表面非常光滑。）']
例句：
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1. The surface of the glass is very smooth.
玻璃的表面非常光滑。
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2.The road was smooth as a mirror.
这条路像镜子一样光滑。
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3. The car's engine has been smoothing out the noise.
汽车的引擎已经把噪音平滑了。