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.
The ocean is our greatest resource, but also our greatest responsibility. How we treat it defines our legacy.
The past is a foreign country; they do things differently there.
在中国取得成功，你既需要激进又需要适应性强。