相位裕度是系统在变得不稳定之前可以容忍的程度的度量。
我不抱怨。我继续努力工作,在每一刻都尽力而为。
The world is full of people who will tell you what you can't do. What you must do is find the ones who will tell you what you can.
Labor market institutions play a crucial role in shaping economic outcomes.