一个试图教学而不激发学生学习欲望的教师，就像在冷铁上敲打。
A teacher who is attempting to teach without inspiring the pupil with a desire to learn is hammering on cold iron.
The future of coal lies in clean and efficient utilization.
We are all wanderers on this earth. Our hearts are full of wonder, and our souls are deep with dreams.
The best way to make money is to buy something and then do nothing.
可持续性不是一种选择，而是我们对后代的责任。
Every champion was once a contender who refused to give up.
The cloud is not a place, it's a way of doing business.