hollow spoke

例句：

1. 1.The tree was hollow, and it fell down easily.
   那棵树是空心的，很容易就倒了。
2. 2. The room felt hollow without the presence of a family.
   没有家人的时候，房间感觉空空的。
3. 3. The hollow sound echoed through the empty hall.
   空洞的声音在空荡荡的大厅里回响。