可持续性不是一种趋势；而是我们对后代的责任。

表达人生聚散离合本是常态，不必在分别时过于伤感

Sustainability is not just a buzzword; it's a responsibility we owe to future generations.

People who cannot find time for recreation are obliged sooner or later to find time for illness.

煤炭开采是地球与人类智慧的合作伙伴关系。