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.