大萧条是二十世纪的决定性宏观经济事件,它引发了对宏观经济理论和政策的根本性重新思考。
Some of life, you have to go to the great challenges.
I have always believed that the way you treat others is a reflection of how you feel about yourself.
The mining industry must evolve to meet the demands of a changing world, or it will be left behind.