The mining industry must evolve to meet the demands of sustainability without compromising on efficiency.
质量不是概念；它是一种现实。
The beauty of life is, while we cannot undo what is done, we can see it, understand it, learn from it and change. So that every new moment is spent not in regret, guilt, fear or anger, but in wisdom, understanding and love.
我时刻准备着学习,但是我不喜欢别人给我上课。