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来源:雅诚德英语网
Males contribute to parental care in fewer than five percent of all mammalian species.
在所有哺乳动物物种中,只有不到5%的雄性承担父母养育的责任。
Males contribute to parental care in fewer than five percent of all mammalian species.
在所有哺乳动物物种中,只有不到5%的雄性承担父母养育的责任。