研究表明，西班牙人的饮酒习惯正在改变。
他们都来自波士顿地区，完成了关于1994至2003年饮酒习惯的调查问卷。
They were all from the Boston area and completed questionnaires about their drinking habits between 1994 and 2003.
(研究人员)在法国各酒吧作了观察实验，研究了音乐的音量对饮酒习惯的影响。
An observational experiment in French bars investigates the effect of music volume on drinking habits.
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