這些石頭經過長期的水流沖刷，已經失去了原有的棱角。
These stones have lost their original sharp edges after long-term water erosion.
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Example sentences
岸邊的岩石經過海浪長年累月的沖刷，形成了獨特的地貌。
岸边的岩石经过海浪长年累月的冲刷，形成了独特的地貌。
The rocks on the shore have formed a unique landscape after years of erosion by waves.
Usage Notes
Used for water washing away something or for geological erosion.
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