And almost all of the irrigation water is from underground.

几乎所有灌溉用水都来自地下。

youdao

Irrigation systems use water from underground when there is not enough rain.

当雨水不足时，灌溉系统会使用地下水。

youdao

Irrigation systems use water from underground when there is not enough rain.

当雨水不足时，灌溉系统会使用地下水。

youdao