砂光的英文：
sanding

sanding是什么意思：
n. 沙；沙滩
v. 用砂纸磨光；撒沙于；被沙堵塞

They panned off the sand and dirt.
他们用淘金盘淘去砂泥。

Sift gold from sand.
沙里掏金。

Sand castle damages easily.
沙堡容易受到损坏。

spit (sand spit)
沙嘴

Many sands will sink a ship
积沙沉船