The most important thing we can learn about water, however, is that we must protect it and use it wisely. Our future depends on it.

然而我们所了解到的关于水的事情中最重要的是：我们必须保护并合理利用它。我们的未来取决于水。

youdao

We must use all our scientific artifice to protect it.

我们必须使用我们所有的科学手段来保护它。

youdao

I believe we must reach these Goals, as the ability of countries to adapt to climate change will depend on the state of population health and the systems in place to protect it.

我认为，我们必须实现这些目标，这是由于国家适应气候变化的能力取决于人群健康状况以及保护健康的已有体系。

youdao

We must act today to protect it for the future.

UNESCO: OFFICE IN BRASILIA

To protect it, we must first better understand marine biodiversity.

UNESCO: OFFICE IN BRASILIA

We also must protect Social Security for future generations because the sluggish economy is making it difficult for young people to survive, let alone save for retirement.

FORBES: 'Family Care' Benefit Could Fix Retiree Pay Gap