中国是世界上沙漠化和砂质化面积最大，危害最严重的国家之一。

China is the world's desertification and sandy area of the largest against one of the worst.

youdao

近年来，该草原中的砂质草场已大面积发生沙漠化。

But in recent years, sandy desertification occurs in the large areas of sandy grasslands in Hulunbuir Steppe.

youdao

近年来，该草原中的砂质草场已大面积发生沙漠化。

But in recent years, sandy desertification occurs in the large areas of sandy grasslands in Hulunbuir Steppe.

youdao