4周搞定2000+托福核心词
dinosaur = dino(恐怖的) + saur(蜥蜴) = 恐龙
pterosaur = ptera(翅膀) + saur(蜥蜴) = 带翅膀的龙→翼龙
鸭嘴龙
hadrosaur
常考释义
The duck-billed dinosaurs known as hadrosaurs are a good example of a group whose jaw joint is below the level of the tooth row, which probably helped them grind up tough, fibrous vegetation.
鸭嘴龙便是一个颌关节比牙齿低的例子，这种高度不一致可能会帮助它们把坚韧的纤维植物磨碎。
来源于：阅读OFFICIAL48 P2n. 鸭嘴龙（一种嘴像鸭嘴的恐龙）
While the scratches told the scientists how the animal may have chewed, the lack of pit marks on the teeth suggested what the hadrosaur was eating.
这些纹路能告诉科学家们这些动物可能是怎样咀嚼食物的，而牙齿上并没有坑坑洼洼的小坑，这个迹象告诉我们鸭嘴龙吃什么。
The duck-billed dinosaurs known as hadrosaurs are a good example of a group whose jaw joint is below the level of the tooth row, which probably helped them grind up tough, fibrous vegetation.
鸭嘴龙便是一个颌关节比牙齿低的例子，这种高度不一致可能会帮助它们把坚韧的纤维植物磨碎。
来源于：阅读OFFICIAL48 P2In a few rare cases, most of them “mummies” (unusually well preserved specimens), fossilized plant remains have been found inside the body cavity of hadrosaurs.
在一些罕见的情况下，鸭嘴龙的体内也发现有植物遗骸的化石或“木乃伊”（罕见的保存完好的标本）。
来源于：阅读OFFICIAL48 P2Similar finds in Corythosaurus specimens from Alberta, Canada, have also been reported, indicating that at least two kinds of Late Cretaceous hadrosaurs fed on the sorts of tress that are common in today’s boreal woodlands.
加拿大阿尔伯塔的冠龙标本也报导了类似的发现，这表明至少有两种晚白垩纪的鸭嘴龙是以现在北半球森林中的常见树木为食的。
来源于：阅读OFFICIAL48 P2以上图片仅供学习交流使用，版权归原作者所有，如有侵权，请与我方联系
