你的意思是想问,你多久运动一次吧
How often do you do some sports?
或是,你一般运动多长时间
How long do you have some sports one time?how _____sport do you do every day?空白处填什么？long还是much是long，表示时间长短，how much 表示价格多少了，如how much does the coat cost