Many scientists disagree about what the differences are between the alcohol addict and social drinker.

许多科学家对于嗜酒成瘾者和社交型饮酒者之间的区别有不同的看法。

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He is a social drinker.

他酒量一般。

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The body of a social drinker learns to prepare for the alcohol in response to the environment, before the alcohol is even ingested.

一个喜欢社交的饮酒者在喝下酒之前，身体就做好了准备，知道这种情形该如何应对。

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Mr Kennedy calls himself as an "up-front social drinker" and refuses to be fussed by the criticism.

BBC: Charles Kennedy: Why try harder?

The police said the number of reported "street drinker events", including crimes and anti-social behaviour, had dropped by 49% in that time.

BBC: Street drinker PHOTO: Thinkstock