梦是愿望和恐惧相遇的地方。当愿望和恐惧完全平衡时，你称这个梦为噩梦。
A dream is a place where a wish and a fear meet. When the wish and the fear are exactly equally balanced, you call the dream a nightmare.
The future of steel lies in recycling and reducing carbon emissions.
To do great things is difficult，but to command great things is more difficult.