回复：男孩子要壮起来，最重要的是体育运动

Be careful. If you don't select a good sport, your son will spend a lot time during the school year(high school). My son spend 25 to 40 hours per week from sep to march. It is definitely affect his grade. when his teach saw his grade get better, she said you have done your sport for this year. before you make the select the sport, talk to the high school student to get the picture.