I know there are freestyle, back-stroke, breast-stroke, butterfly and dolphin stroke.

我知道有自由泳，仰泳，蛙泳还有海豚泳。

youdao

I know there are freestyle, back-stroke, breast-stroke, butterfly and dolphin stroke.

我知道有自由泳，仰泳，蛙泳还有海豚泳。

youdao