grindstone的例句（grindstone在句子中的用法）

• Keep your nose to the grindstone and you should pass the exam easily. 刻苦学习， 你就能不费力气地通过考试。
• A knife is sharpened on the grindstone;steel is tempered in fire. 刀在石上磨,钢在火中炼。
• He sharpened the edge of his knife on a grindstone. 他在磨石上磨快了他的刀刃.
• A knife is sharpened on the grindstone; steel is tempered in fire. 刀在石上磨, 钢在火中炼.
• Take the sickle which is lying on the grindstone. 把磨刀石上的那把镰刀拿去.