Their reward: new types of sauropod (top) and pterosaur both of which lived almost a hundred million years ago, in the Cretaceous period.是什么意思_Their reward: new types of sauropod (top) and pterosaur both of which lived almost a hundred million years ago, in the Cretaceous period.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句