对于系统，翻版的模拟是在控制图中添加一个创建循环的边，而不仅仅是一个附加节点。
For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.
I think scars are like battle wounds - beautiful in a way. They show what you've been through and how strong you are for coming out of it.
用武力征服城市，用仁慈平息动乱！这治理之道，太智慧了！并且既要有力挽狂澜的能力，也要有安抚人心的胸怀！