A high dive will make a swimmer go deeper upon entry and therefore, the swimmer will cover more vertical distance to get to the surface. Covering that extra distance costs time.

高度过高的出发跳水会导致入水过深，因此，游泳运动员到达水面的垂直距离会更长，滑过这段额外的距离也就更费时。

youdao

I felt as if I'd somersaulted off the high dive and then, in midair, realized that there was no water in the pool.

顿时，我感觉自己像是从高台翻腾而下跳水，却在半空中发现水池没有水。

youdao

I felt as if I'd somersaulted off the high dive and then, in midair, realized that there was no water in the pool.

顿时，我感觉自己像是从高台翻腾而下跳水，却在半空中发现水池没有水。

youdao