The karst rocky desertification comprehensive prevention and cure is a long-term and massive system project.

喀斯特石漠化综合防治是一项长期、庞大的系统工程。

youdao

The karst rocky desertification comprehensive prevention and cure is a long-term and massive system project.

喀斯特石漠化综合防治是一项长期、庞大的系统工程。

youdao