做间谍就是生活在一个充满怀疑和猜疑的世界里。
The cool thing about being famous is traveling. I have always wanted to travel across seas, like to Canada and stuff.
Life is like a bracelet...It has little jewels around it which are like the little bright moments that come along in our lives every now and then...
若父子之间缺乏传承与沟通，则家庭难以和谐。
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。