Innovation in mining technology isn't optional - it's essential for our survival and growth.
采矿技术创新不是可选项 - 它对我们的生存和发展至关重要。
We are all searching for something, even if we don't know what it is.
我是一个美国黑人，我为我的种族感到骄傲。我为自己是谁感到骄傲。我有许多自豪和尊严。
成功不在于目的地，而在于旅程。
The best way to predict the future is to create it.
风俗的专制无处不是人类进步的阻碍。