A goat was standing up against a tree on its hind legs, trying to get at the leaves.

一只山羊后腿趴在一棵树上站起来，试图去够树叶。

The fossil luckily includes a good portion of the hind legs.

很幸运，化石包含了一大部分后腿。

Archaeopteryx shows no obvious features of gliders, such as a broad membrane connecting forelimbs and hind limbs.

始祖鸟并没有表现出明显的滑翔机的特征，比如有一层连接前肢和后肢的宽膜。