People are using a lot more bandwidth than they did in the past on other things—often without realising it.

相比过去，人们在其他的事情上消耗了过多的宽带——而他们自身往往没有意识到这一点。

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The English language has over 15,000 idioms and native speakers use them very frequently, often without realising it themselves.

英语有15000多个成语，而且本族语使用者往往在不自觉的情形下频仍利用它们。

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The simple fact of how important group membership is to us, and how easily we join groups, often without realising it, is both a subtle and profound observation about human nature.

我们所属的群体对于我们的重要性，以及我们经常在无意识的情况下如此轻易地加入不同的群体，这些都是关于人性微妙而又深刻的观察。

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Our street experiment was to demonstrate just how easily people can be manipulated into offering up information without realising it.

BBC: Inside Out reveals mind readers' techniques

But mostly without realising it, the UK shopper has become more comfortable with haggling by asking stores to match the prices they have found online.

BBC: 'I'll give you a tenner for that'

They typically shoulder the costs without realising it.

ECONOMIST: Companies try to make health-care costs transparent