I don't know how long records have been kept, but even if we can go back 500 yrs is that enough time given how old the earth is to say with any certainty?
我不知道目前有多长的记录。但是连地球的年龄至今都没有确切的结论，即便我们可以追溯到500年前的地震记录，它们是不是足以说明问题呢？
The age of the earth is about how old?
地球的年龄大约有多大？
The fact is like this striking and the brutality, the Earth life grows out of nothing, also unceasing weeding through the old to bring forth the new, then humanity's final destiny how?
事实就是如此的醒目和残酷，地球生命从无到有，又不断的推陈出新，那么人类的最终命运又将如何呢？
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