I will never really fathom the female psyche.

我永远无法真正猜透女性心理。

I can't fathom what you really meant.

我不能领会你真正用意。

Have you fathomed out how to work the video yet?

你弄清楚如何操作录像机了吗？

I can’t fathom her out — she says one thing then does another.

我琢磨不透她─她说一套，做一套。

The harbour is four fathoms deep.

港深为四英寻。

I can't fathom his meaning.

我无法领会他意思。

I can’t fathom him.

我摸不透他心思。