英语语法分析

You can round off the corners with sandpaper.

你可以用砂纸把棱角打磨光滑。

《牛津词典》

They also give the shark's skin the feel of sandpaper.

鲨鱼的皮肤也有砂纸的感觉。

He rounded off the sharp corners of the table with a piece of sandpaper.

他用一块砂纸把桌子的各个尖角磨圆。