bottom door hanger link

例句：

1. 1. The bottom door hanger link was the only thing that held the door open.
   底部门吊钩链接是保持门打开的唯一东西。
2. 2. The bottom door hanger link had been damaged, causing the door to stick.
   底部门吊钩链接受损，导致门卡住。
3. 3. We removed the bottom door hanger link and replaced it with a new one.
   我们拆下了底部门吊钩链接并更换了一个新的。