The only place the fly kick is not a plus for most swimmers is in the 50-yard freestyle.

对于大多数游泳者来说，海豚腿唯一没什么用的地方就是50码自由泳比赛。

youdao

The only place the fly kick is not a plus for most swimmers is in the 50-yard freestyle.

对于大多数游泳者来说，海豚腿唯一没什么用的地方就是50码自由泳比赛。

youdao