- 问题详情:Topreventthedesertscomingnear,Chinahasplantedbillionsoftrees---toreplacedestroyedforestsandasbarriersagainstthesand.Thisisn’tacure,though,sayexperts,asthirstytreescanmaketheproblemworsebytakingingroundwater.“Plantingtreesisoneway,butitisn’...
- 12321