从侧面看，这不过是一个基本的海豚式打腿，……但当凯文转过身来，面对镜头时，你将注意到，他的两腿从外向内的动作非常明显。

From the side, you can see it's basic dolphin kick... but as Kevin rotates his body toward the camera, you'll notice the distinct outside-in motion of his legs.

youdao

从侧面看，这不过是一个基本的海豚式打腿，……但当凯文转过身来，面对镜头时，你将注意到，他的两腿从外向内的动作非常明显。

From the side, you can see it's basic dolphin kick... but as Kevin rotates his body toward the camera, you'll notice the distinct outside-in motion of his legs.

youdao