grind

我们需要把胡椒粒磨碎以便调味。

We need to ___grind the peppercorns to season the dish.

备考的枯燥重复让人疲惫不堪。

The endless ___grind of exam preparation can be exhausting.

她每天都要埋头苦干处理大量数据报告。

She has to ___grind through piles of data reports every day.