任何事件的概率是依赖于该事件发生的期望值与事件发生时预期值之间的比率。
"The greatest glory in living lies not in never falling, but in rising every time we fall."
艰苦奋斗的石油精神永远不能丢,这是我们的传家宝。
Ignoring isn’t the same as ignorance, you have to work at it.
绿色金融不仅是责任,更是新的增长点。