watertight wall

• 不透水墙

watertight wall的用法和样例：

例句

1. The tidal wave formed a terrifying wall of water.
   海啸形成一堵骇人的水墙。
2. Leakage in a dam foundation may sometimes be overcome by digging deep into it so as to build a cutoff wall into the foundation.
   坝基漏水的现象，有时可以用深挖地基建造堵截水墙的办法来克服。