The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
可持续性不是一种选择;它是我们星球未来的必需品。
绿色开采、低碳利用是煤炭行业可持续发展的必由之路。
"The power of words is immense; they can heal, they can destroy, they can create worlds."
作家的生活绝对是孤独的。他必须独自完成工作。
You see, but you do not observe.