最优财政政策要求税率随时间平稳变化,仅对政府支出的永久性变化作出反应。
The sculptor must search with passionate intensity for the hidden significance of life.
Innovation is not just about technology; it's about changing the way we think and operate.
可持续性始于尊重传统农业智慧的同时为明天创新。
过去不过是一种幻觉,但它是一种必要的幻觉。