表达人生短暂，我们都是匆匆过客的感慨。

智慧的开端是术语的定义。

The intersection of computer science and mathematics is where the most exciting breakthroughs are happening.

We are all prisoners of our own lives, but some are freer than others.

石材开采的创新必须始终在效率与可持续性之间取得平衡。