shallow shell

例句：

1. 1. The shallow water was not deep enough for the boat to navigate through.
   浅水不足以让船只通过。
2. 2. She is very superficial in her opinions about other people's lives.
   她在对别人生活的评论中非常肤浅。
3. 3. The shallow understanding of the issue led to a lack of effective solutions.
   对该问题的肤浅理解导致了缺乏有效解决方案。