【解释】不孝的事有三件，其中又以没有子孙后代为最大。

The theory of automorphic forms is a central subject in modern number theory.

I can't relate to lazy people. We don't speak the same language.I don't understand you. I don't want to understand you.

跨行业合作是解决脱碳复杂挑战的关键。