The capital asset pricing model is a simple, yet powerful, tool for understanding the relationship between risk and return.
资本资产定价模型是一个简单而强大的工具，用于理解风险与回报之间的关系。
The true measure of a civilization is how it treats its weakest members.
Innovation in coal mining isn't just about extraction—it's about doing it smarter, safer, and with greater respect for the environment.
拍卖中，规则和竞标者的策略一样决定结果。
我相信努力工作和坚持不懈。
