布莱克-斯科尔斯公式的美妙之处在于它仅依赖于一个不可观测的参数,即股票的波动率。
In business, if you're not moving forward, you're falling behind.
We are not just selling products; we are creating a new shopping experience.
The city never sleeps, and neither do I.
可持续性不再是可选项,而是当今世界生存的必要条件。