grindstone
n
1 stone shaped like a wheel, turned on an axle, against which one holds knives or other tools to sharpen them 砂轮.
2 (idm 习语) keep one's/sb's nose to the grindstone => nose1.
🗣️ 情景例句
Well, I do care about Michelle.
是的, 我真的关心 Michelle。
Take care of the pence and the pound will take care of themselves.
金钱积少便成多。
The students are going to take the test in two days' time.