不过事实上人人都知道吸烟有害健康，因此在烟草行业这不算什么问题。但是如果一个产品的危害不被大众所知道时，那这就将成为一个问题了。
Now in fact everyone knows about the dangers of smoking, so that is not a serious problem; but it is a problem when the hazards of a product are not widely known.
酗酒和抑郁之间的联系自不待言，但我们还没有完全搞清两者之间的因果关系，不过人人都知道，如果象济公那样壶不离身、酒不离口，不多久人就会成了不中用的酒囊。
Not surprisingly, there's an observable correlation between alcoholism and depression, and even though it's not always clear which leads to which, everyone knows you can't drink like a
服务员似乎认为人人都喝咖啡，不过如果你想要别的饮料，也只管请说。
Waiters tend to assume that everyone drinks coffee, but simply tell them if you wish something else.
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