除非我们采取行动，否则我们则面对更加恐惧的未来。
And unless we act, we are confronting an even more frightening future.
野生动物将会濒临灭绝，除非我们采取行动保护它们。
If we don't take action to protect the wild animals, they will die out.
除非我们采取行动，夏季冰层将可能在35年短的时间内全部消失。
Unless we take action, summer ice could be completely gone in as little as 35 years.
多数科学家相信：某些温室效应问题会发生，除非我们采取行动减缓目前的发展趋势。
Many scientists believe that a number of these greenhouse problems will come to pass unless actions are taken to slow some of today's trends.
我们生活在一个拥挤而闷热的地球，除非我们采取更加强有力的集体行动，否则不久的将来我们的星球便会面目全非。
We're living on a crowded, hotter Earth, and unless we take strong, collective actions, someday soon we may not even be able to recognize our own planet.
世界银行警告称，西非埃博拉危机可能会严重损害几内亚、利比里亚和塞拉利昂的经济，除非我们立即采取行动。
The World Bank is warning that the West Africa Ebola crisis could severely harm the economies of Guinea, Liberia and Sierra Leone unless action is taken quickly.
要将防御和强迫行为以及威慑和虚张声势行为区分开来特别困难，除非我们知道采取行动的原因。
It is especially difficult to distinguish defensive from compellent actions and deterrent from swaggering ones unless we know the reasons for which they were undertaken.
但是这不足以指责单边主义，除非我们对某些国家的脆弱表示担忧，因此迫使他们采取单边行动计划。
But it is not enough to denounce unilateralism, unless we also face up squarely to the concerns that make some States feel uniquely vulnerable, and thus drive them to take unilateral action.
这世界不是静止不动，我们不该在现在位罝，除非我们让自己领先，并采取必要行动来维持竞争力。
The world doesn't stand still and we don't deserve to be where we are unless we stay ahead of things and take the necessary steps to remain competitive.
这世界不是静止不动，我们不该在现在位罝，除非我们让自己领先，并采取必要行动来维持竞争力。
The world doesn't stand still and we don't deserve to be where we are unless we stay ahead of things and take the necessary steps to remain competitive.
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