On physical education and extra-curricular activities to prepare before the warming-up, attention should be paid to exercise when not to dramatic collision, so as not to be knocked down or fall.
上体育课和课外活动前要作好准备活动，运动时要注意不要剧烈碰撞，以免撞伤或摔伤。
Warming up is essential to prepare your body for strenuous activities and to minimize the risk of injury.
热身准备是必不可少的剧烈活动，您的身体，并尽量减少受伤的危险。
I just started this year warming up with my IPOD music. I find it easier to focus on the game and kind of tune-out all of the other pre-game activities on the court during warm-ups.
我是这个赛季才开始在热身的时候戴着IPOD听音乐的，我觉得这样可以让我更容易地集中精神到比赛上来，而且还可以把热身时场上进行的其他活动隔开。
Taking the training methods of pliable and tough warming -up for example, the article states the necessity of proper preparatory activities.
本文以柔韧性热身运动练习方法为例，简单阐述做好准备活动的必要性。
What you should pay attention to are the warming-up & relaxion of activities & exercises.
要注意的是长跑前的准备运动和锻炼后的整理放松运动；
What you should pay attention to are the warming-up & relaxion of activities & exercises.
要注意的是长跑前的准备运动和锻炼后的整理放松运动；
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