未来一个阶段的关键，则是美国整修其经济大厦的努力，中国在国内国际事务中的走向，各国政府在重振经济增长、控制核扩散以及应对能源与环境挑战方面的合作能力。
As for the future, it is much more likely to be defined by the United States’ need to put its economic house in order; China’s trajectory within and beyond its borders; and the ability of the world’s governments to cooperate on restoring economic growth, stemming the spread of nuclear weapons, and meeting energy and environmental challenges.