| 单词 | grindstone |
| 释义 | grindstone grindstone /ˈɡraɪnd.stəʊn/ aep /-stoʊn/ noun [C] ► F0 a large round stone that is turned by a machine and is used to make tools sharper or sharp edges smoothThesaurus+: ↑Tools , ↑Gardening tools |
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