air bell

例句：

1. 1.The air bells on the doorbell were ringing loudly.
   门铃上的风铃在响亮地响着。
2. 2.The air bell was a signal for the fire department to come quickly.
   空气铃是消防部门迅速到来的信号。
3. 3. The air bell rang, and everyone rushed to the front door.
   空气铃响了，每个人都冲到前门。