求翻译：比赛方法，第一个是女生，第二个是男生以此类推。每个学生手脚着地，第一个女生腹部放上健身球，以头向后，双脚在前姿势爬行，行进25米后，把健身球放在第二个男生腹部上，该男生继续以同样方式前行，以此类推是什么意思？

The game method, a girl, and the second is the boys and so on. Each student hands and feet with a female abdomen placed on a fitness ball to head back, feet first posture crawling on the road after 25 meters, fitness ball boys abdomen, the boys continued in the same way forward, and so on

Competition method, the first of which were female, the first two boys and so on. Each student in the hands and feet, and the first female abdomen on the ball, in order to head back, feet up on the front crawl, and the road 25 meters, the ball in the first 2 boys on the abdomen, the boys in the same

The competition method, first is a female student, second is the male student by this analogy.Each student hands and feet is well-grounded, the first female student abdomen puts fitness the ball, by backward, the both feet in front posture crawling, after marches forward 25 meters, places the fitnes

Match method, the first is a girl, the second is a boy and so on. Each student's hands and feet, the first female abdominal fitness ball, head back, feet in position before crawling, the road after 25 m, on male abdominal fitness ball in the second, the boys continue to move forward in the same way,

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