Experience also suggests that first estimates of GDP growth are almost always revised upwards. This is why policymakers now pay close attention to surveys of business and consumer confidence.

经验显示，第一次对GDP增长的预估通常都要向上修正，这也是为什么现在的决策者更关注商业和消费者信心调查的原因。

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Surveys show that most Americans experience challenges with stress at some point during the year.

调查发现每年大多数美国人都在不同程度上受到压力的挑战。

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Recent surveys have shown increasing customer disappointment with the overall experience major online travel sites are offering.

最近调查显示，客户对主要在线旅游网站所提供的整体服务越来越失望了。

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This weekend I met another HR professional, and I spoke with her about her experience with these kinds of surveys.

FORBES: Creating Context in the Interview Process

Which raises another question - are we reporting business sentiment properly when we concentrate on views about the economy in general, rather than using these surveys as a snapshot of first-hand experience?

BBC: Go Figure: The great business confidence gap

Lula's special interest in hunger no doubt reflects his own childhood experience, but was also inspired by household-income surveys suggesting that up to 50m Brazilians almost 30% of the population do not earn enough to buy sufficient food.

ECONOMIST: Three square meals a day