两足动物

后来的经验集中在与两足动物的前期工作。

Later lessons focus on advanced work with the biped .

所谓动画模板，就是用一段脚本语言定义的一个两足动物在一般状态下的行走动作。

The animation template is a biped walking motion under normal condition that defined by the script language .

两足动物股部的肌肉使腿弯曲，四头肌则将腿拉直。

The biceps muscle of the thigh bends the leg ; the quadriceps straightens it .

人类和鸟类都是两足动物。

Human beings and birds are bipeds .

实际上没有角而仅有皱褶初形的原始恐龙；后肢长，前肢短；可能曾是两足动物。

Primitive dinosaur actually lacking horns and having only the beginning of a frill ; long hind and short front limbs ; may have been bipedal .

作为两足动物，我们直立的习惯在动物界是独一无二的，这种习惯也是为了适应我们的身体和大脑而采取的一种特殊补偿。

Known as bipedalism , our habitual upright posture is unique in the animal kingdom and has arisen through specific complementary adaptations of the body and brain .

步法，脚步人或其他两足动物的步法，双脚轮流提空，一只脚的某一部分始终接触地面。

The gait of a human being or other biped in which the feet are lifted alternately with one part of a foot always on the ground .

写这类人，我没忘记他们是人类，只是人类，具有无毛两足动物的基本根性。

In writing about these people , Idid not forget they are human beings , still human beings with the basic nature of hairless , two-legged animals .

例如，这只用四脚走路的斑龙就是个遗憾，但现在我们知道，如果它是两足动物，它会只用后腿走路，那么前腿就会很小，可以直接从地面举起。

This megalosaurus for instance is a shame walking on all four legs , but we now know he would have be bipedal if he would have stood on just his hind legs and his forelegs would have been quite small and lifted it right up off the ground .

最早的鸟类是从树上向地面滑翔的树栖生物，还是因进化出了翅膀而逐渐喜欢长距离跳跃的两足陆生动物？

Were the first flyers arboreal creatures that initially glided from tree tops to the ground ? Or were they bipedal ground runners whose evolving wings allowed them to take progressively longer jumps ?