这个科学发现It's a scientific discovery 对全人类来说都有巨大的意义that has staggering implications for all mankind. .
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两个警觉的科学家发现了这个错误。
科学家首次提出这个问题是在20世纪90年代中期。当时,研究人员偶然发现一种化学药剂,这种药剂在啮齿动物身上似乎可以发挥和热量限制相同的正面效果。
Scientists first posed this question in the mid-1990s, after researchers came upon a chemical agent that in rodents seemed to reproduce many of caloric restriction's benefits.
事实上,这个过程可能会在克隆的基因中嵌入一些小的缺陷,而科学家们直到现在才发现这些缺陷。
In fact, the process can embed small flaws in the genes of clones that scientists are only now discovering.
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