Now, sewage has become heading water source for irrigation at outskirts of Chinese town.

现在，污水已经成为中国城镇近郊灌溉用水的重要水源。

youdao

Now, sewage has become heading water source for irrigation at outskirts of Chinese town.

现在，污水已经成为中国城镇近郊灌溉用水的重要水源。

youdao