We don't recommend spending 24 hours a day on a mobile phone - we don't know the long-term effects, and bills could go through the roof.

我们不推荐一天24小时使用手机——我们不知道其长期的后果，而且花费也会飞涨。

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But we're at that stage now where people get carried away, expectations go through the roof when it's important to stay grounded and focus on the important challenges ahead.

但在球迷热血沸腾、期望爆棚的时候，保持冷静以及对比赛的专注就更重要了。

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But they do not necessarily expect prices to go through the roof.

不过他们当然没有预料到房价会飞涨。

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England's self-belief will go through the roof after this exhilarating series win and the victory parade that follows.

BBC: SPORT | Cricket | Ashes 2005 | England's success story

It'll go through the roof if he fulfills his ultimate ambition to make it to the Tour de France.

CNN: Songezo Jim: From the townships to the Tour de France

It's wrong to sell materials properties but oil doesn't go through the roof.

FORBES: Managing Money