求翻译：因此，进一步加强培养学生积极参与体育活动的态度和行为应在教师的调控下从学生的兴趣出发。因为，运动参与和参与的愿望，从10岁到18岁成急剧下降趋势，而缺少乐趣则是导致退出活动的直接原因。[是什么意思？

Therefore, to further strengthen the students to actively participate in sports activities, attitudes and behavior should be under the control of teachers, starting from the student's interest. Because sport participation and the desire to participate, from 10 to 18 years old into a sharp downward t

Therefore, to further strengthen our students to participate in sports activities should be in the attitudes and behavior of teachers under control from the interest of students. participation and involvement in the campaign, because that desire from the age of 10 to 18 years old, and a sharp declin

Therefore, further strengthens trains the student to participate in the sports positively the manner and the behavior should embark under teacher's regulation from student's interest.Because, the movement participation and the participation desire, becomes from 10 years old to 18 years old drops the

Therefore, reinforcing the cultivation of students ' positive attitudes and behaviors should teachers participate in sports activities regulated by proceeding from the students ' interests. Because the sport participation and the desire to participate, from age 10 to 18 years of age into a sharp dec

Therefore, reinforcing the cultivation of students ' positive attitudes and behaviors should teachers participate in sports activities regulated by proceeding from the students ' interests. Because the sport participation and the desire to participate, from age 10 to 18 years of age into a sharp dec