煤炭曾是工业进步的支柱,但其未来必须平衡经济需求与环境责任。
The key is to set realistic customer expectations, and then not to just meet them, but to exceed them—preferably in unexpected and helpful ways.
使自己成为一个对象,使自己被动,与成为一个被动的对象是非常不同的。