这片位于沙漠里的密集绿圈代表由中枢灌溉系统支持的农业生产。

Green circles in the desert frequently indicate tracts of agriculture supported by centre-pivot irrigation.

youdao

这片位于沙漠里的密集绿圈代表由中枢灌溉系统支持的农业生产。

Green circles in the desert frequently indicate tracts of agriculture supported by centre-pivot irrigation.

youdao