Mammals arose from a fairly primitive reptile in the Mesozoic era.哺乳类起源于中生代宛若原始的爬虫类.They attracted the attention of every bird within eyeshot, every reptile not yet asleep.它们就把所有目力见得着的鸟儿,和所有还没入蛰的爬虫, 都引得注意起来.A crocodilian...
Mammals arose from a fairly primitive reptile in the Mesozoic era.哺乳类起源于中生代宛若原始的爬虫类.The land is teeming with reptile life.这片土地多爬行动物.The frog is not a true reptile.青蛙并非真正的爬行动物....