我们难以理解“无条件的爱”意味着什么。
It is hard for us to fathom what "unconditional love" means.
参考翻译：What 'unconditional love' truly means is hard to fathom.
It's hard to fathom what it means to love someone unconditionally.
场景:宇宙中的奥秘令人难以琢磨清楚。
造句:The secrets in our universe are hard to fathom.
