英语语法分析

Theropods are mainly known from the ancient southern landmass, Gondwana.

兽脚类主要产自远古的南方大陆——冈瓦纳古陆。

Most theropods, like the one found in Spain, are meat-eaters, though some were omnivores.

如在西班牙发现的这种，大部分兽脚类恐龙都是肉食者，也有一些是杂食者。

Theropods were early winged and feathered dinosaurs that walked mainly on their hind legs and were incapable of flight.

兽脚亚目食肉恐龙是早期的有翼和羽的恐龙，其主要靠后足行走且不会飞行。