grindstone
US /ˈɡraɪnd.stoʊn/
UK /ˈɡraɪnd.stəʊn/
名词
磨刀石, 砂轮
a revolving stone disk used for grinding, sharpening, or polishing
示例:
•
He sharpened his axe on the old grindstone.
他在旧磨刀石上磨利了他的斧头。
•
The sculptor used a small grindstone to refine the edges of his work.
雕塑家使用小磨刀石来修饰作品的边缘。