当英国劳动力调查询问人们是否郁闷时，U型变成拱型，在46岁时达到顶点。
When the British Labour Force Survey asks people whether they are depressed, the U-bend becomes an arc, peaking at 46.
经济学家们还运用了2005年五大城市的城市劳动力调查来核对和验证。
As a crosscheck, the economists also used the 2005 Urban Labour Survey of five big cities.
重重压力令产业工人们牢骚不断：劳动力调查显示出对工作表示不满的人数创了纪录。
Hard-pressed workers are feeling grouchy: workforce surveys report record levels of job dissatisfaction.
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