这个地方离穆尔加布河很近,人们要依靠此河供水。
Well , the site was close to the Murgab river , which they would have depended on for their water .
穆尔加布河是向西流的,这条河是那种会随时间改变流向的河。
And the Murgab river , which runs toward the west , is the kind of river that shifts its course over time .