And that's where our four-legged friends, the cows, come to the rescue.

这时，四足朋友——牛——就会来拯。

It's the famous robot quadruped, or four-legged dog-like machine from Boston Dynamics.

这是波士顿动力公司著名四足机器人，也就是四条腿狗一样机器。

Whatcheeria was an early tetrapod, as the first land animals with backbones were known.

瓦切螈是一种早期四足动物，作为第一批有脊椎陆地动物而为人所知。

Quadrapeds like Pachyrhinosaurus walk on all fours.

像肿鼻角龙这样四足恐龙用全部四肢行走。

It was a magnificent sea otter from the genus Enhydra, the only exclusively marine quadruped.

倒下来是一只很看水獭，一只水兽，它可能是住在海中唯一四足兽了。

Particularly if those skills might come in handy for our four-footed little friends.

尤其是碰到可爱四足朋友迟早有用技能。

This was the missing link between bony fishes and tetrapods, including human beings, so this was a fantastic expectation.

这是硬骨鱼和包括人类在内四足动物之间缺失一环，所以对来说这种期待很奇妙。

So, we've kind of moved on from a bird launch, and now we think that they were launching quadrupedally.

研究了鸟类起势，现在认为翼龙是用四足行走方式起。

Game with four paws, Professor Aronnax, Ned Land replied. All these pigeons are only appetizers, snacks.

还短一只四足猎物，阿龙纳斯先生。尼德·兰回答，所有这些鸽子、山鸠都不过是零食和小吃。

Unlike many early tetrapods, bones of Whatcheeria have been discovered from different points in the animal's life.

与许多早期四足动物不同是，人发现了瓦切螈不同生命阶段骨骼。

The squat four legged Gastonia's heavy load slows him down to four to five miles per hour.

四足矮壮加斯顿龙沉重负荷使它速度只有每小时4到5英里。

Pachyrhinosaurus though was a more compact quadrupedal kind of animal, a more sturdy build than what we see in Albertosaurus.

肿鼻角龙是一种更结实四足动物，比阿尔伯特龙身体更加粗壮。

This animal came in the nick of time for us to bag some real quadruped meat, and it was warmly welcomed.

这猪正在追求真正四足兽肉时候到来了，所以它很受欢迎，被留下了。

Your few four-legged ancestors, the tetrapods, struggled in tropical river plains.

你少数四足祖先， 四足动物，在热带河流平原上挣扎。

I’m using “cow” to mean “four-legged farm animal that moos”.

用“牛” 来表示“会哞叫四足农场动物” 。

But it also had tetrapod like legs.

但它也拥有类似四足动物腿。

It was a term of derision for two-legged as well as four-legged animals.

它是对两足动物和四足动物蔑称。

And he came up with one called The Four-Legged Zoo.

他构思出了一个名为《四足动物园》节目。

It's a four-legged robot you can ride like a horse.

这是一款可以像骑马一样骑乘四足机器人。

And a sauropod dinosaur is the type of dinosaur that walks on four legs.

而一种蜥脚类恐龙是四足行走恐龙。