Many winemakers use cork stoppers; but cork stoppers can leak, crumble, or become moldy, so that those winemakers must often discard a significant proportion of their inventory of bottled wine.

许多酿酒师使用软木塞；但软木塞可能会漏水、碎裂或发霉，因此这些酿酒师常常必须丢弃大量的库存瓶装葡萄酒。

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Fake news websites often use addresses that sound like real newspapers, but don't have many real stories about other topics.

假新闻网站经常使用听起来与真正报纸相似的网址，但并没有很多关于其他话题的真实故事。

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Some doctors say that masks can stop the virus as much as 80%, but if you don't wash your hands often, it's no use wearing a mask.

医生称，口罩可以阻挡高达80%的病毒，但如果不勤洗手，戴口罩也没有用。

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"We found that easier access to emergency contraception did help women use the pills more quickly when it was needed, and they used it more often, but despite that increased use and faster use, it didn't reduce rates of unintended pregnancy."

VOA: standard.2010.03.22

But you probably should use often because hey, who doesn't get frustrated?

但你也许该多多运用它，因为毕竟，谁不会感到沮丧呢？

I'm frustrated 课堂 - SpeakingMax英语口语达人

And that's just a way of reminding you that we want to think carefully, but what are the things we're trying to measure when we talk about complexity here? It's both the size of the thing and how often are we going to use it? And there are some trade offs, but I still haven't said how I'm going to get an n log n sorting algorithm, and that's what I want to do today.

这只是在提醒你们我们要仔细的思考问题,但是当我们在讨论复杂性的时候,我们到底要衡量哪些东西？,是列表的大小和对其进行查找的频率吗？,这里面临一些取舍,但是我还没有说明,怎样得到一个n，log，n复杂度的排序算法,并且这是我今天想要讲的内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

But French voters often use the second round to reject the candidate they dislike most, as much as to back the other.

ECONOMIST: France's presidential election

This approach can provide incredible control over an artificial arm, but patients often prefer to use simpler, mechanical prosthetics.

ECONOMIST: Rewiring nerves

You might have a coffee maker with a frothing spout for making fancy dirks, but how often do you use it?

FORBES: The Rolex of Coffee Makers - How Swiss-Made Precision Changed My Life