I argue that students, primary school students in particular, should be relieved from the heavy task of studying and doing homework, thus having more time for sports and physical exercise.
我认为学生，特别是小学生，应该从繁重的学习和作业中解放出来，将更多的时间投入到体育锻炼中去。
Exercise such as playing sports is fun, and you can spend time with your friends and family as you play together.
比如进行体育活动这方面的锻炼是有趣的，当你们一起的时候你可以和朋友。家人一起度过时光。
The main factors influencing their sports behavior is the lack of physical exercise knowledge, time and management as well as the bad living habit and particular environment.
影响研究生体育行为的主要因素是：健身知识、时间、组织管理的缺乏以及研究生特定的环境和不良的生活习惯等。
Sports medicine experts usually claim that a person needs to exercise for some minimum period of time, usually a half-hour a day, three or four days a week.
运动医药专家们一般都说每个人至少都得有一定时间的运动，通常是一个星期至少三至四天，每天至少运动半小时。
This illuminates that the exercise of super-long time and medium intensity has a great influence on the hemorheological properties, which is possibly one of the reasons of sports ability falling.
提示，超长时间、中等强度运动对血液流变性的影响可能是导致耐力运动能力下降的原因之一。
In the spare time doing sports and neither romantic time, and can be effectively exercise.
在课余时间做运动，既不会浪漫时间，又能得到有效的锻炼。
Abstract: "life is exercise", the beauty of life is that it all the time in the campaign, and sports, it focused on the beauty of this kind.
摘要：“生命在于运动”，生命之美在于它时时刻刻都处于运动之中，而体育，恰好集中了这种美。
What's more, sports let students' brains have a rest so that they can study effectively. [2] On the other hand, 45\\\% believe taking exercise is a waste of time and it is tiring.
还有，运动能使同学们的大脑得到休息以便他们能更有效地学习。另一方面，有 的同学认为运动是在浪费时间并且十分累人。
Even leisure time is often devoted to activities such as sports, exercise, or other hobbies that involve intense activity and effort.
即使是闲暇时间，美国人也会花时间去做运动、锻炼，或是参加其他体力消耗大的活动。
For those who are fond of sports, summer holiday is a good time to do exercise and keep healthy.
对于喜爱运动的同学来说，暑假是参加体育运动，保持身体健康的好时机。
For those who are fond of sports, summer holiday is a good time to do exercise and keep healthy.
对于喜爱运动的同学来说，暑假是参加体育运动，保持身体健康的好时机。
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