- 问题详情:It'slateeveninginthemiddleofthewinter.Thesnowisdeep,butoffIgointothewild.Suddenly,Ihearit:thehowl(嚎叫)ofwolves.Excitedly,Iwalkfasterinthedirectionofthehowling. I'vebeenworkingasavolunteerwolftrackerinYellowstoneNationalParkforoverayear.It'smyjo...
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