| 释义 |
duck-BNC²³⁶²¹³⁺¹
例句
“ For millions of years, until their extinction at the end of the Cretaceous, duck- billed dinosaurs, or hadrosaurs, were the world's dominant herbivores, ” Purnell said.
在几百万年间，直到他们在白垩纪结束时消失之前，鸭嘴龙是地球上最主要的食草动物。 yeeyan
Duck- billed dinosaurs lack they type of jaw joint found in mammals that allows us to slide our teeth in a side-to-side motion.
鸭嘴龙没有那种哺乳动物具备的下颌关节，而正是这种关节让我们的牙齿可以左右运动。 yeeyan |