尽管已经做出了这些努力，但只要酒精依然很易获得、可以负担，且社会依然能够接受，预防工作就会是一场艰苦的斗争。

But despite these efforts, as long as alcohol is accessible, affordable and socially acceptable, prevention work will be an uphill struggle.

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这种自行车刹车的可靠性据称达到99.999999999997 %，教授补充道：“在三万亿次试验中，我们只有三次失败。 这不算完美，但已经是可以接受的程度。”

They found the bike brake works with 99.999999999997 percent reliability, and the professor added: 'This implies out of a trillion braking attempts, we have three failures.

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有些人已经接受每年一或两次的肠道疾病是不可避免的，但事实上，这些疾病都是可以预防的。

Some people have come to accept a yearly bout or two of intestinal illness as inevitable, but in truth, these illnesses can and should be prevented.

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