空洞的

• frothy
• thin
• inane
• barren
• empty
• cavitary
• cavernous
• jejune
• disembodied
• vacuous

例句

1. 空洞的评价
   A vacuous comment.
2. 气势汹汹的大话大声的、傲慢的讲话，经常充满空洞的威胁
   Loud, arrogant speech, often full of empty threats.
3. 空洞的评论
   An inane comment.