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
Britain is behind Japan in developing modern technology.
在发展现在技术方面英国落后于日本。
When Greek meets Greek, then comes the bug of war.
两雄相争,难解难分。
Though people have often laughed at stories told by seamen, it is now known that many of these 'monsters' which have at times been sighted are simply strange fish.