debouche

例句：

1. 1. The door was locked and the only way to get in was through the small rectangular window at the top of the door.
   门被锁上了，唯一的进入方式是通过顶部的小矩形窗户。
2. 2. The old man used a wooden handle to open the door.
   老人用木把手打开了门。
3. 3. The handlebars on the bike are designed to help you maintain balance while riding.
   自行车的把手设计用来帮助你骑行时保持平衡。