一些最基本的东西，比如观众的一个小小的点头或一个微笑，都能给站在讲台后面的演讲者带来信心。
Something as basic as a small nod or a smile from a member of the audience should give confidence to the presenters behind the podium.
比如，美国消费者信心就出现了快于预期的反弹。
American consumer confidence has rebounded more quickly than expected, for instance.
这通常是因为击垮信心的其他因素引发价格上涨，比如中东广泛的动乱。
This is often because prices are driven by other factors that hurt confidence, such as wide unrest in the Middle East.
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