Anewstudy,aprojectoftheresearchersfromtheUniversityofPi...
問題詳情:Anewstudy,aprojectoftheresearchersfromtheUniversityofPittsburghinPennsylvania,findsthefitnesstrackerprobablydoesnothelpwithweightloss. Thedevicesaredesignedtorecordyourphysicalactivity.Th...