charging bell

例句：

1. 1.The charging bell rang at the entrance of the museum.
   博物馆入口的报时铃响了。
2. 2.The bell rang for everyone to gather in the lobby.
   铃响，让大家聚集在大厅里。
3. 3. The bell was a signal that the train was about to depart.
   铃响是火车即将出发的信号。