20年的韵事使女人变成一片废墟,20年的婚姻使女人变成一座公共建筑。
文化生态学与人类生态学的不同之处在于它强调文化被修改的适应过程。
The essence of mathematics lies in its freedom.
Enterprises must have the courage to take responsibility and play a leading role in energy transformation.