optional exercise meaning in English

任选习题
自选动作

The regularity and characteristics of the set arrangement of women ' s trampoline optional exercise
女子蹦床自选动作成套编排的规律与特点
That ' s trune . just now i said there were four set exercise for women . besides , there are also optional exercise . they are chosen by the competitor
对。刚才我说过女子规定动作有四项，除此之外，还有自选动作，由者自己。
That ' s trune . just now i said there were four set exercise for women . besides , there are also optional exercise . they are chosen by the competitor
对。刚才我说过女子规定动作有四项，除此之外，还有自选动作，由参赛者自己设计。
A : that ' s trune . just now i said there were four set exercise for women . besides , there are also optional exercise . they are chosen by the competitor
对。刚才我说过女子规定动作有四项，除此之外，还有自选动作，由参赛者自己设计。