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![Astheproverbgoes，manstrugglesupwards；waterflowsdownward...]( "Astheproverbgoes，manstrugglesupwards；waterflowsdownward...")
Astheproverbgoes，manstrugglesupwards；waterflowsdownward...
问题详情：Astheproverbgoes，manstrugglesupwards；waterflowsdownwards．Waterrunsdownhillfrommountaintopstostreams，toriversandtooceans．Butdownhillisn'ttheonlywaythatwatermoves．Anewstudymeasureshowwatertravelsfrom...
