最重要的事情，我们能不能了解水，然后，保护它，更明智地利用它。

The most important thing we can learn about water, however, is that protect it and use it wisely.

youdao

最重要的事情，我们能不能了解水，然后，保护它，更明智地利用它。

The most important thing we can learn about water, however, is that protect it and use it wisely.

youdao