例句 If you keep your nose to the grindstone, you’ll do well in your exams. 如果你埋头苦读，你就会考出好成绩。 I had a tight deadline, so I put my nose to the grindstone and got the work done. 我的时间期限很紧，所以我埋头苦干，把工作做完了。

Encouraging someone to do something they are reluctant to do ...