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Carnivores are usually socially complex mammals.
食肉动物通常是有着复杂的社会关系的哺乳动物。
《牛津词典》
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MICE are socially complex animals with the capability to learn and solve problems.
老鼠的社会结构复杂，能学习并解决问题。
youdao
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MICE are socially complex animals with the capability to learn and solve problems.
老鼠的社会结构复杂，能学习并解决问题。
youdao