bone fan

例句：

1. 1. Theold man was using a bone fan tocool himself down in the hot summer sun.
   老人用骨扇在炎热的夏日中给自己降温。
2. 2. She bought a bone fan asa gift for her grandmother's birthday.
   她买了一个骨扇作为祖母生日的礼物。
3. 3.The bone fan is made from the bonesof animals, which makes it eco-friendly and sustainable.
   骨扇是由动物骨头制成的，这使得它既环保又可持续。