Sustainable development is not an option, but a necessity for the coal sector.
成功的最好方法是坚持不懈。
人们并不总是在我身边,但音乐一直都在。
I don't have to be perfect, I just have to be me.
In times of change, the ability to learn is far more important than the ability to know.
我们感知到的每一种气味都是分子和受体之间复杂的相互作用,理解这种相互作用是理解我们感官体验的关键。