很难想起在全球的力量均势体系中，还有那一个时期会同时发生更多的转变，而且其中没几项是对美国有利的。
It is hard to remember a time when more shifts in the global balance of power are happening at once - with so few in America's favor.
想象什么对当下情形最有利，思考可能发生的最好情况或结局。
Visualize what’s good about the situation. Think about the best possible scenario or outcome instead.
看起来如此自然的对双方都有利的利益上的交流在互惠发生之前也同样给人们的生活造成了阻碍。
That exchange of favors that seems so natural with benefits for both parties is also, unfortunately, what gets in people's way before reciprocity ever occurs.
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