铃扣

例句：

1. 1. The little girlwore a keychain with her favorite cartooncharacter on it.
   小女孩戴着一个带有她最喜欢的卡通角色的钥匙链。
2. 2. He foundthe keychain in his pocket and quicklyunlocked the door.
   他在口袋里找到了钥匙链，并迅速打开了门。
3. 3. She hungup her coat on the hook by thedoor, then picked up her keychain.
   她把外套挂在门旁边的钩子上，然后拿起了她的钥匙链。