自动机和形式语言的研究对于理解计算的极限是基础性的。
The study of automata and formal languages is fundamental to understanding the limits of computation.
Green and low-carbon transformation is an inevitable choice for the petroleum industry. While ensuring energy supply, we must actively promote clean energy development.
使精神达到玄寂境界，断绝尘世烦恼，这就是涅槃
我从不害怕死亡。让我担忧的是死亡的过程。