怀特告诉我，研究人员在一两天的时间里从一个地方走到另一个地方，表面看起来平淡无奇，但实际上古人类学上很多关键“时间窗口”的确定就在于这样的亦步亦趋中。
White had told me that many of these "Windows of time" lie in such close proximity that one could literally walk from one to another in the course of a couple of days.
我们一直在走的这条路表面上很好走，是一条平坦的超级公路，我们可以高速前进，但是走到尽头却要遇到灾难。
The road we have long been traveling is smooth superhighway on which we progress with great speed, but at its end lies disaster .
事实上，许多人没有从地球表面上消失（迷路走到了外太空）真是一个奇迹。
The fact that more of us didn't vanish off the face of the earth is frankly a miracle.
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