Scientists are still trying to understand this unfathomable phenomenon.

科学家们仍在试图理解这一难以理解的现象。

John's father always looks unfathomable.

约翰的父亲总是一副高深莫测的样子。

A new generation of unmanned submersibles is poised to explore the unfathomable undersea caves.

人类准备用新一代的无人潜水机来探索这个深不可测的海底洞穴。

For some unfathomable reason, my phone battery died, even though it was fully charged just a few minutes ago.

由于某种不可思议的原因，我的手机没电了，尽管几分钟前它是满电。

Yeah, shopping channels have been around for ages, and billions in a day was practically unfathomable before now.

是的，电视购物其实已有很长的历史了。以前的话，日成交额数十亿几乎是难以想象的。

For some unfathomable reason, there are no stairs where there should be.

因为某种不可理解的原因，该有楼梯的地方却没有。

It looks so mystique and so unfathomable.

它看起来如此神秘和深不可测。

Only peace remained and unfathomable silence.

只有安宁和深深的平静留了下来。

The virgin forest is so mysterious and unfathomable.

原始森林神秘莫测，又被称为处女林。

He, for some unfathomable reason, wanted to be with me.

他因为某个不得而知的理由，想和我在一起。