可持续性不是一种选择;它是我们对下一代的责任。
Sustainability isn't a choice; it's our responsibility to the next generation.
新的大国的崛起总是引起现有大国的担忧,因为它威胁到现有的权力平衡。
释义:他或许认为,物质的产生和消亡都源于气的聚散,气是物质生死循环的驱动力。
"You don't have to burn books to destroy a culture. Just get people to stop reading them."