And they use their flippers, sort of extended out to the side, to maneuver.

鲸鱼利用从身体两侧伸出鱼鳍来操控移动方向。”

And we use different silicone gels to create a soft, robotic flipper.

并用不同种类制作柔软机械鳍。

Just get to that lot to help. Many flippers make light work.

过来这边帮忙。脚蹼多力量大。

And the flipper of a penguin for swimming.

企鹅翅膀则适合游泳。

Kell is still learning how to maneuver with his giant flippers, which seem more like giant wings.

凯尔还在学习如何驾驭它巨大鳍足，鳍足看起来像一对巨大翅膀。

Bones from their flippers are as thick as large rocks.

它们鳍状肢上骨和大石一样厚。

For some reason, they almost always use the right flipper to waft the sand away.

由于某种原因它们几乎一直使用右鳍肢把沙子扇走。

They had flippers like a turtle and long necks like a giraffe.

蛇颈龙鳍状肢有如乌龟，脖子长如长颈鹿。

They often use simple equipment such as a mask, snorkel and flippers.

通常使用简单装备，如面罩、呼吸管和脚蹼。

Ryan had to keep his fingers on the flippers except to eat and drink.

喝，Ryan要把手指一直放在游戏机上。

But I always just kind of give it the flipper and move on.

但我总是顺其自然，继续生活。

The Brygmophyseter uses its flipper to steer, it is literally rudderless without it.

四贺鲸用它鳍肢来控制方向，没有它真就没有方向。

This beetle's flippers are truly sophisticated, bordered with a fringe of hairs.

这种甲虫脚蹼真先进得多，它边上有一圈毛。

Wetsuit, flippers, now, all it needs is a air tank.

潜水服、脚蹼现在它就差气瓶。

He was tired of working so hard when he went swimming, so he invented flippers.

他觉得游泳太累，简直受够，于是他就发明蛙鞋。

The toughest part about being a flipper is really the unknown and the what-if.

炒房最困难部分其实是未知和假设。

Eventually, their front limbs became flippers and their hind limbs became weak and unnecessary.

最终，它们前肢变成鳍状肢，而它们后肢变得虚弱和多余。

The creatures were underwater predators with large flippers and big mouths full of teeth.

这些生物是水下捕食者，长着巨大鳍肢和满是牙齿长颚。

Because water is a lot denser than the air, we humans need flippers to move around.

因为水比空气密度大得多人类要靠脚蹼才能移动。

The penguin's wings are more like flippers that help it swim through the water but they don't fold.

企鹅翅膀更像鳍状肢，可帮助其在水中游泳，但不能折叠。