smacker

例句：

1. 1. The doctor gave me a smacker to help me breathe better.
   医生给我开了一个打嗝机，帮助我呼吸更好。
2. 2. She smacked her lips and laughed at the joke.
   她打了一下嘴唇，笑了。
3. 3. The children were playing with their smackers when the fire alarm went off.
   孩子们在玩他们的打嗝器时，火警铃响了。