这个展览告诉我们为什么要采取行动阻止大气污染。
The exhibition tells us why we should do something to stop air pollution.
那些警告采取行动就可以带来风险的人必须解释,为什么我们对这些风险的担忧应该超过如果坐视不动则肯定要引起大规模痛苦延续的道理。
And those who warn about the risks of action must explain why these risks should worry us more than the certainty of continued mass suffering if we do nothing.
怀疑论者会用常见的问题来反驳:再过几个月,我们就要在一次重要的国际气候会议上达成协议了,为什么还要采取任何形式的单边行动呢?
Sceptics will retort with the usual questions: why take any form of unilateral action when we are months away from what has been billed as a critical international climate conference?
Why does there have to be any type of a civil marriage?
我们为什么要采取公证结婚这种形式呢?
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