真正的可持续性意味着为子孙后代留下比我们发现时更好的土地。
The only purpose for which power can be rightfully exercised over any member of a civilized community, against his will, is to prevent harm to others.
你所要做的就是写一个真实的句子。写出你所知道的最真实的句子。
Intelligence is the ability to predict the future based on past experience.