drop bottom bin

例句：

1. 1. The engineer dropped the bottom bin and started cleaning it.
   工程师把漏斗底部的桶放下来，开始清理。
2. 2.The workers used the drop bottom bin to store their tools.
   工人们使用漏斗底部的桶来存放他们的工具。
3. 3. The scientist dropped the bottom bin into a large container filled with water.
   科学家将漏斗底部的桶放入一个装满水的容器中。