shallow underwater burst

例句：

1. 1. The shallow water is not suitable for swimming.
   浅水不适合游泳。
2. 2.The shallow understanding of the issue may lead to misunderstandings.
   对问题的肤浅理解可能导致误解。
3. 3. The shallow knowledge of history can only serve as a starting point for further learning.
   对历史的肤浅知识只能作为进一步学习的起点。