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mammals的音标：mammals的英式发音音标为：['mæml]mammals的美式发音音标为：['mæml]...
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Whales belong among the mammals.鲸鱼属于哺乳动物.Most mammals live on land.大多数哺乳动物生活在陆地上.The boa feeds on birds and small mammals.蟒主要吃鸟和小的哺乳动物....
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Humans experience a delayed maturity; we arrive at all stages of life later than other mammals.人类发育较缓——在生命的各个阶段，我们都晚于其他哺乳动物。Mammals damage orchards on every continent by girdling roots.哺乳动物在各地对种子园的危害是咬断根系.A bony process ...