中国和其他威权国家的崛起挑战了自由民主是唯一可行政治制度的观念。
The rise of China and other authoritarian states challenges the idea that liberal democracy is the only viable political system.
Sustainability isn't an option; it's a necessity for the future of energy.
Leadership is about making tough decisions today that will shape a better tomorrow.
没有责任感的效率不过是鲁莽的速度。
过去是一个谜题，每一块都很重要。
我们水域的健康直接关系到我们社区的健康。