bell clapper

例句：

1. 1.The bell clapper rang as the clock struck midnight.
   钟敲响时，铃铛响起。
2. 2.The bell clapper was a symbol of good luck in ancient times.
   在古代，铃铛是好运的象征。
3. 3.The bell clapper rang out as the train pulled into the station.
   火车进站时，铃铛响了。