最后级的哺乳类动物为连结所需的盐浓度而退化出了高效的内排泄系统。
The most successful mammalian species would have been those that developed efficient hormonal systems for maintaining the needed sodium concentrations.
最后级的哺乳类动物为连结所需的盐浓度而退化出了高效的内排泄系统。
The most successful mammalian species would have been those that developed efficient hormonal systems for maintaining the needed sodium concentrations.
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