Optimal fiscal policy requires that taxes be smooth over time, as abrupt changes can distort economic decisions.
最优财政政策要求税收随时间平滑,因为突然的变化会扭曲经济决策。
I want to be a teacher for my fans and show them that you can fail and still be magical.
道家的自然观不仅是一个物理概念,更是一个形而上的概念。
Sometimes the hardest thing and the right thing are the same.
It is not the computer's fault that Maxwell's equations are not adequate to design the electric motor.