过去是一个异国;他们在那里做事的方式不同。
The past is a foreign country; they do things differently there.
相机就像武器;如果你不知道如何使用它,它就很危险。
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。
Sustainable development is not an option, but a necessity for the coal sector.
In the quest for understanding the cosmos, every question answered leads to a dozen more.
The greatest inventions are those which most directly meet the wants of mankind.