李小姐给他们看了一张全身长满羽毛的恐龙的照片.Miss Li showed them a picture of the feathered dinosaur.它的茎是椭圆形的,并且全身长满刺,实际上它们身上的刺是它们的叶子.The stalk is oval and there are thorns all over its body.很快全身长着一层厚厚的脂肪和毛.Soon it has a thick covering of fat...