“This is a key point in evolution, ” Dr. Berg said, “when RNA learned to make proteins.”

这是进化的关键点，Berg博士说，当RNA学会如何制造蛋白质的那一刻。

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“This is a key point in evolution, ” Dr. Berg said, “when RNA learned to make proteins.”

这是进化的关键点，Berg博士说，当RNA学会如何制造蛋白质的那一刻。

youdao