经济学中最重要的是理解个人和企业的行为。
解释:辅与车互相依存,嘴唇没有了,牙齿就要受寒。
A public-opinion poll is no substitute for thought.
Every loaf tells a story—of the baker's skill, the flour's origin, and the care taken at every step.
The environment is a long-term issue that requires long-term commitment.
我不是淑女,我是Gaga。