Then, kick your legs up and down together in a whipping motion generating from the hips and bending at the knees, as if you were a dolphin.

通过髋关节和膝关节用力运动，上下踢你的腿，就像海豚一样。

youdao

Then, kick your legs up and down together in a whipping motion generating from the hips and bending at the knees, as if you were a dolphin.

通过髋关节和膝关节用力运动，上下踢你的腿，就像海豚一样。

youdao