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
Please sit down, Mr. Mark.
请坐吧,马克先生。
You have no goats,and yet you sell kids.
没有老山羊,还把小羊卖。
Considering the amount she paid, he was dear in more ways than one!