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
Thank you, everyone. See you next week.
谢谢大家。下星期见。
Words pay no debts.
空言无补。
To his astonishment, the bee began to perform a dance on the surface of the honeycomb.