随着全球粮食产量的提高，“我们必须保护好水和空气质量。

As the world steps up production, "We have to protect the water and air quality.

youdao

随着全球粮食产量的提高，“我们必须保护好水和空气质量。

As the world steps up production, "We have to protect the water and air quality.

youdao