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1·And he has a theory about early life and perfectly appropriate as far as one can tell of what pre-human form he studied.

他有一个有关早期生命的理论，一般人都会觉得很正常，他研究人类之前的生命形式没有什么不合适。

2·THERE are many reasons not to travel overseas with small children, and, as far as I can tell, only one reason to do so.

不带小孩子到国外旅行有很多理由，但是我只知道一条为什么要这么做的理由。

3·As far as I can tell the study is looking at how much people in one region communicate with another.

就我所看这个研究主要是看某个“区域”间人们的交流。

4·As far as I can tell, no one even attempted to take my computer while I was gone.

据我可以告诉，没有人甚至企图把我的电脑，而我是荡然无存。