fathom [ˈfæðəm]

以下由轻松背单词网站提供

vt.领悟，彻底了解

a unit for measuring the depth of water , equal to 1.8 metres or 6 feet

I really couldn't fathom what he was talking about. 我真搞不懂他在说些什么。
What these people hoped to achieve is hard to fathom. 这些人希望实现些什么目标难以揣测。