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 like to think about architecture as a kind of landscape.
这个世界是个美好的地方，值得为之奋斗。
能源转型不仅仅是更换燃料；它关乎整个系统和思维方式的转变。