我觉得是因为他每天都锻炼而我每周才锻炼三次的原因。
I think it is because he does excise every day. For me, I just take excise three times a week.
尽管我爷爷已经七十岁了，他还是每天早上都锻炼。
My grandfather does exercise every morning even though he is already seventy.
他还表示，笑并不能代替锻炼。我们强烈建议每天都笑笑。
While laughter should not replace exercise, he said, "We do recommend that you try to laugh on a regular basis.
他还表示，笑并不能代替锻炼。我们强烈建议每天都笑笑。
While laughter should not replace exercise, he said, "We do recommend that you try to laugh on a regular basis."
他还表示，笑并不能代替锻炼。我们强烈建议每天都笑笑。
While laughter should not replace exercise, he said, "We do recommend that you try to laugh on a regular basis."
应用推荐