All dinosaurs were reptiles.
所有恐龙都是爬行类动物.
Dinosaur legs were positioned below their bodies.
恐龙脚长在身体两边.
Dinosaurs lived on land.
恐龙生长在陆地.
Some dinosaurs were carnivores (meat-eaters).
有些恐龙食肉.
Some dinosaurs were big.
有些恐龙体形很大.
Some dinosaurs can fly.
有些恐龙会飞.