理解布莱克-斯科尔斯模型的关键在于认识到它是基于创建无风险对冲的理念。
I was born with an enormous need for affection, and a terrible need to give it.
Acting is a journey of self-discovery, and every role is a new adventure.
一个组织的领导质量决定了其文化质量。
The elements of consciousness are to be studied in their pure form.