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Humans, insects, reptiles, birds, and mammals are all animals.人、昆虫、爬行动物、鸟类和哺乳动物都是动物。Whales fall under the class of mammals.鲸归入哺乳动物纲。Most mammals use their sense of smell to find food.大多数哺乳动物靠嗅觉觅食。Most mammals live on land.大多数哺乳动物生活在陆地上。Humans are unique among mammals in several respects.在哺乳动物中，人类有几方面非常特别。Although some marine mammals are protected by environmental laws, many remain unprotected.尽管有一些海洋哺乳动物受到了环境法的保护，但还有很多不在其中。No mammals other than people may enter the country without lengthy quarantine.除人之外，所有的哺乳动物进入这个国家都必须经过长期隔离。Owls feed on insects, birds, and small mammals.猫头鹰以昆虫、鸟类和小型哺乳动物为食。Human beings, dogs, and cats are all mammals.人类、狗和猫都是哺乳动物。Bats are the only mammals to have achieved sustained flight.蝙蝠是唯一能持续飞行的哺乳动物。Whales belong among the mammals, not fish. 鲸应属于哺乳类动物，而非鱼类。Fish, birds, insects, reptiles, mammals, and human beings are all animals.鱼、鸟、昆虫、爬行动物、哺乳动物以及人类都是动物。All mammals are warm-blooded.所有哺乳动物都是温血动物。Unlike other mammals, the human umbilicus is clearly visible.和其他哺乳动物不同，人类的脐肉眼清楚可见。Apes are mammals.猿是哺乳动物。Humans, dogs, elephants, and dolphins are all mammals, but birds, fish, and crocodiles are not.人、狗、大象和海豚都是哺乳动物，而鸟、鱼和鳄鱼则不是。We are a non-profit organization dedicated to the conservation of ocean mammals.我们是一家致力于保护海洋哺乳动物的非营利性机构。Whales are mammals; fish are not.鲸是哺乳动物；鱼则不是。He's a world expert on marine mammals.他是研究海洋哺乳动物方面的世界性权威。Mammoths were herbivorous mammals.猛犸是食草性哺乳动物。The study sheds light on the genetic differences between placental and marsupial mammals. 这一研究让人了解胎盘哺乳动物和有袋哺乳动物在基因上的差异。Some species of bat predate small mammals.某些种类的蝙蝠捕食小型哺乳动物。Birds and mammals are warm-blooded.鸟类和哺乳动物都是温血动物。Cats are constantly on the watch for mice or other small mammals.猫总是伺机抓些老鼠或其他小哺乳动物。These small mammals are generally confined to the south of the island.这些小型哺乳动物一般只出没于该岛南部。All mammals breathe air.哺乳类动物全都呼吸空气。 |