Take the sickle which is lying on the grindstone.

把磨刀石上的那把镰刀拿去。

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考试。

I will take exams in two weeks, so I'm keeping my nose to the grindstone just at the moment.

我两星期后要考试, 因而眼下正埋头苦读。

He sharpened the scythes on the grindstone, slaughtered a pig, caught and salted fish, ground barley in a water-driven gristmill and grew and stored potatoes.

他用砂轮磨镰刀，宰猪，抓鱼腌鱼，在水磨坊碾大麦，种土豆收土豆。

There's a gaudy big grindstone down at the mill, and we'll smouch it, and carve the things on it, and file out the pens and the saw on it, too.

锯木厂那儿有块又大又棒的磨刀石，我们可以去把它偷来，在上面刻东西，面又可以在上面磨笔和锯子。”