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1·Because they were bipedal, their arms were free to evolve flapping flight, which cannot be said for other reptiles of their time.

因为它们是两足动物，它们的手臂可以自由地进化出拍打的翅膀，这在当时的爬行动物中是不可能的。

2·Moreover, even though humans have been upright for millions of years, our feet and back continue to struggle with bipedal posture and cannot easily withstand repeated strain imposed by oversize limbs.

此外，尽管人类直立行走已经有数百万年的历史，我们的脚和背部仍在两足行走的姿势中艰难斗争，无法轻易承受过长的四肢持续施加的压力。

3·This creates the Canon of bipedal locomotion.

这就造成了“佳能”双足移动的。

4·Huey: One more thing: our new bipedal weapon needs a name.

休伊：还有件事：我们的双足武器需要一个名字。

5·It was also bipedal, but was slightly larger in body size.

也有人双足，但在身体稍有规模较大。

6·This is a robotic walking machine, bipedal, about 4 meters tall.

这是一个行走机器人，双足，高约4米。

7·One of these gene machines, a social and bipedal ape, began to imitate.

这些“基因机器”其中的一个，一个群居的两足人猿开始了模仿。

8·It is said to be a tree climber, but often stands on the ground in a bipedal stance.

据说它是爬树好手，但是却经常以两足站立。

9·It was fully bipedal and the thickness of its bones showed that it was quite strong.

这是完全双足和骨厚度其表明这是十分强烈。

10·Human beings, or man - Latin: wise human, are bipedal primates in the family Hominidae.

人，或人类，拉丁语称为“智人”，属于人科双足灵长类生物。