There were bipeds, tripeds and quadrupeds.

有两足、三足和四足动物。

But Albertosaurus being a biped means that it only walks on two legs.

不过阿尔伯特龙作为一只两足恐龙意味着它只用两足行走。

And as you see here, beyond bipeds, a bunch of different agent types are supported.

如你所见，除了运用两条腿的，还有很多种类的运动单元我们可以选。

Would you call a human a biped, a quadruped, or both?

你会称人类为两足动物、四足动物，还是两者兼而有之？

However, biped robots are also really hard to create.

然而，双足机器人也很难创造。

But instead of being a small biped, it was 2 to 3 meters long and walked on four legs!

但它不是小型两足动物，而是有两三米长， 四足行走！

Why does nature's most advanced biped need to supplement its own feet with such substantial add-on gear?

为什么自然界最先进的两足动物需要用如此大量的附加装备来补充自己的脚？

But his boss always called him a biped animal in the bin and hit him with a billy.

但他的老板总称呼他为一只箱柜里的两足动物并用一根棍棒打他。

Let's think of some of the advantages of being a biped or facultative quadruped.

让我们想想作为双足动物或兼性四足动物的一些优势。

Ornithopods started off as bipeds, but the larger hadrosaurus probably walked on all four legs most of the time.

鸟脚类动物一开始是两足动物，但体型较大的鸭嘴龙可能大部分时间都是四足行走。