Thegreatthingaboutexerciseforteensisthatjustaboutany...
问题详情： Thegreatthingaboutexerciseforteensisthatjustaboutanyactivitythatgetsyoumovingwillwork.Youshouldtrytogetvigorous(有氧的)exerciseforaboutanhouradayatleast3daysaweekandregular,moremoderatea...