如何使用 "hadrosaur" 造句
- 1. The researchers say the scratches reveal that the movements of hadrosaur teeth were complex and involved up and down , sideways and front-to-back motion .
- 研究者们认为，这些纹路显示了这种鸭嘴龙的牙齿运动很复杂，包括了上下、左右、前后的运动。
- 2. Although its name identifies it as a small duckbill , it is based on juvenile remains , and the size of the adult hadrosaur is unknown .
- 虽然从它的名字就可知它是小型的鸭嘴龙科，但其实发现的只有幼体遗骸，而成体的大小就不得而知了。
- 3. So far , they have determined that the hadrosaur 's hindquarters are 25 percent larger than previously thought for the species , meaning that it could run up to 28 mph -- faster than previously estimated .
- 到目前为止，他们已经确定，鸭嘴龙的后腿的百分之二十五大于以前认为的物种，也就是说，它可以跑到28英里/小时-比以前的估计快。
- 4. 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。