模型检查的挑战不仅在于发现错误，还在于理解它们为何发生。
The challenge in model checking is not just to find errors, but to understand why they occur.
To make people free is the aim of art.
Coal has been the backbone of industry, and with innovation, it can continue to be.
死亡不是生命的对立面，而是它的一部分。