ring a coin

例句：

1. 1. She decided to ring a coin for luck.
   她决定投币以求好运。
2. 2.The old man used to ring a coin for his favorite drink.
   这位老人过去常常为了他最爱的饮料而投币。
3. 3.The children were playing with their toys, ringing a coin as they went.
   孩子们正在玩他们的玩具，边走边投币。