中国东北的寒地黑土是世界三大黑土资源之一。

The Cold Region and Black Glebe in northern China is one of the three black glebe resources in the world.

youdao

中国东北的寒地黑土是世界三大黑土资源之一。

The Cold Region and Black Glebe in northern China is one of the three black glebe resources in the world.

youdao