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来源:雅诚德英语网
Scientists owe medical advances to the animals which make substantial contributions to the experiment.
科学家把医疗的进步归结给为实验做出了巨大贡献的小动物们。
Scientists owe medical advances to the animals which make substantial contributions to the experiment.
科学家把医疗的进步归结给为实验做出了巨大贡献的小动物们。