采矿技术的创新不是可选的，而是我们对下一代的责任。
Innovation in mining technology isn't optional—it's our responsibility to the next generation.
过去半个世纪最重要的政治发展是自由民主在世界范围内的传播。
"Painting is the silence of thought and the music of sight."
主动管理策略在扣除费用后无法产生卓越的回报。