The answers offered by an analysis of the past are more general; they relate to scale and they are actions that we can take on board, though we may not like their message.
分析过去，得到的答案更具普遍性，过去的活动是规模化的，是我们可以考虑借鉴的，尽管我们也许不喜欢那些通讯方式。
What is troublesome is not just that the idea, like other geoengineering schemes, is untested on any appreciable scale.
刺手的不只是该想法，像其他地质工程方案一样，它没有在任何可评估的范围内测试过。
The impact of the deep water deployment is definitely an unknown unknown, as it has not been used on anything like this scale before.
深海的处置措施施造成的影响显然是一个未知的未知，毕竟在此之前人们从没有处理过这么大规模的事故。
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