HSK 7-9
光滑
guānghuá形
glossy; sleek; smooth
石阶被雨水冲刷得很光滑。
Shí jiē bèi yǔ shuǐ chōng shuā de hěn guāng huá.
The stone steps have been worn smooth by rainwater.
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Appears across levels (7-9) in the HSK 3.0 word list.