1·That's a tall order, considering the almost unfathomable complexity of the human brain.
考虑到人类大脑几乎深不可测的复杂程度，那就是比登天还难。
2·Unless there are inherent limits on human understanding—itself an unfathomable premise—there will always be more apparently disparate phenomena to explain at one fell swoop.
除非人类的理解力有与生俱来的极限——这本身就是个深不可测的前提——否则总会一下子有异象等着人们来解释。
3·Who needs space when there remain the unfathomable depths of our own oceans?
当我们有深不可测的海洋时，谁还需要空间？
4·WHEN it comes to partners, men often find women's taste fickle and unfathomable.
但谈及自己的另一半，男人们经常觉得女人的审美观变幻无常而且深不可测。
5·In an unfathomable tragedy, Jones died after being beaten and robbed by a group of teens as he unloaded groceries from his car in his driveway.
在一个深不可测的悲剧，琼斯被殴打后死亡和青少年抢劫一组，因为他卸下车道杂货他的车从他的研究。