Coal keeps America competitive in the world.
Leadership is not about being in charge. It's about taking care of those in your charge.
我不是传奇,我只是一个成为传奇的人。
新式教育理论中的中心思想之一,正是呼吁人们重视孩子社会本领的培养,并且鼓励孩子与同伴相处。
采矿业的未来在于创新和负责任的资源管理。