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来源:雅诚德英语网
The fossil remains of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more than two centuries.
翼龙是第一批会飞的脊椎动物,它的化石遗迹已经吸引了古生物学家两个多世纪。
The fossil remains of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more than two centuries.
翼龙是第一批会飞的脊椎动物,它的化石遗迹已经吸引了古生物学家两个多世纪。