翻譯：我們難以理解“無條件的愛”意味著什么。

We are hard fathoming the love is unconditional mean what.

參考翻譯：What 's unconditional love' truly means is hard to fathom. 或者 It's hard to fathom what it means to love someone unconditionally.

作為動詞：表示深入理解，絞盡腦汁也很難理解

難以看透某人或某事也可以直接說

“I can’t fathom him/her/it”