Do they show an understandable defensiveness on the part of leading scientists faced with ill-informed challenges from climate change nay-sayers, or something more worrying?

科学家领头人面对着反对气候变化学说的人的一知半解的疑问，或者其他更另人担心的事情。就他们而言，科学机构表现出的是一种可被大众理解的防御吗？

youdao

Lose momentum and your forward thrust will be curtailed. If you ingest the animosity and acrimonious threats of the nay sayers you will be discouraged, and indeed that is their controlling motive.

如果你接受那些充满敌意或尖刻威胁之谔谔之士的话，你将会丧失勇气，而让他们控制的动机得逞。

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It helps us engage in open and honest conversations and hear from both our supporters and our nay-sayers.

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Joe Lieberman and Jon Kyl, the obstructionists were forced to allow a vote that overwhelmingly repudiated the nay-sayers.

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Ariel Sharon, the current leader of the Likud party, hopes to unite all the nay-sayers under his banner.

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