It's a general thing; it's around that time is the best we can really say.
这只是大概的时间,是我们根据证据的推测
I just give you one of those, right, because you could write down the other one because you know the other complimentary sequence from base pairing?
我只写了一条链的序列,因为你们能够写出另一条,因为你们根据碱基配对,就能推测出互补链的序列
I think it's in the eighth century that Hanson points out is relevant here.
根据汉森提出的相关理论,我推测它应该在八世纪左右
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