barrel pump

例句：

1. 1. The barrel pump is used to extract water from a well.
   桶泵用于从井中提取水。
2. 2.The barrel pump was the only way to transport water in those days.
   桶泵是那个时代唯一的运输水的方式。
3. 3.The barrel pump was used to pump water from the well during the drought.
   在干旱期间，桶泵被用来从井中抽取水。