grinding mill

例句：

1. 1.The grains are ground into flour in this mill.
   谷物在这个磨坊里被磨成面粉。
2. 2.The mill is the heart of the village's economy.
   这个磨坊是村里经济的核心。
3. 3. The mill was built over a hundred years ago.
   这个磨坊建于一百多年前。