英语词典
Their results showed convincingly that among living animals, whales are most closely related to the even-toed hoofed mammals, or artiodactyls, a group whose members include camels, hippopotamuses, pigs and ruminants such as cows.
他们的结果证明,在现生哺乳类中,鲸豚与偶蹄类最亲近;骆驼、河马、猪及牛羊等反刍动物都属于偶蹄类。
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