swimming stroke造句

1、What swimming stroke are the competitors to adopt?
选手在游泳时应采用什么泳姿？

2、A swimming stroke executed with the swimmer lying on his or her back.
仰泳游泳者用仰卧姿势进行的泳姿

3、an elementary swimming stroke imitating a swimming dog
最基本的游泳方式模仿一只在游泳的狗。

4、Any swimming stroke can be used in triathlon.
铁人三项赛的游泳可以采用任何泳姿。