wooden casks

例句：

1. 1. The old farmer used to store his grain in wooden casks.
   老农民过去常用木桶储存他的谷物。
2. 2. The ship was built with wooden casks for ballast.
   这艘船是用木桶作为压舱物的。
3. 3.The old man had a collection of wooden casks that he inherited from his ancestors.
   那位老人收藏了一些木桶，这是他从祖先那里继承下来的。