Seeing this view of both the water's placid surface and the creatures lurking below makes me feel like a swimmer at the surface with my legs dangling below.

观看平静水面和潜伏在下面的动物，使我感觉到我像是一个在水面上游泳者，而腿却在水下晃来晃去。

youdao

I have the feeling, very familiar to me when I am out of time but almost never otherwise, of being 12 buoyed up by time, floating effortlessly on its surface like a fat lady swimmer.

我有种很熟悉的感觉，每当时限将至便有此感觉，几乎从没例外，我感觉自己漂浮在时间的海洋之上，如同一个在游泳的肥妇人，轻而易举地漂浮在水面上。

youdao

Start with the simple push-off drill, in which the swimmer pushes off and stays in the streamline position until they pop to the surface and stop moving forward.

从简单的有力的游泳练习，游泳运动员结束划水时，停留在流线型姿势直到他们流行于表面，停止前进。

youdao

The anonymous swimmer then brought Ms Frankcom to the surface and got her on board a boat.

BBC: A Great White Shark

The deck of some boats, such as the Taunton, a 228-foot Danish steamer built in 1902, lie just 10 feet below the surface, an easy duck dive for even an average swimmer.

BBC: Wreck diving in Bermuda

In an active drowning, a swimmer is at or below eye level at the surface of the water for about 10 to 20 seconds.

CNN: Water safety expert: 'Drowning doesn't just happen'