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。

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.

youdao

上体育课和课处活动前要作好准备活动，运动时要注意不要剧烈地碰撞，以免撞伤或摔伤。

Physical education, and class activities should be prepared before, the movement should pay attention to don't a violent collision, so as not to hurt or hurt.

youdao

上体育课和课处活动前要作好准备活动，运动时要注意不要剧烈地碰撞，以免撞伤或摔伤。

Physical education, and class activities should be prepared before, the movement should pay attention to don't a violent collision, so as not to hurt or hurt.

youdao