- 问题详情: Whendidyoulastseeapolarbear?Onatriptoazoo,perhaps?IfyouhadattendedawinteractivityinNewYorkafewyearsago,youwouldhaveseenawholepolarbearclub.These"PolarBears"arepeoplewhomeetfrequentlyinthewintertoswiminfreezingcoldwater.Thatday,theairtem...
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