One hand, from extremely serious shortage to surplus on Market, from extreme high to very low level on profits, from simple single to variety on products, it changes widely and fast.

一方面，市场从供不应求到产能过剩，行业利润从极度暴利到严重微利，产品从简单单一到丰富多样，变化波及面广、速度快。

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And so I was collecting from friends and colleagues' computers all sorts of logs that monitored the kind of low level activity that was happening on their computer.

因此我从朋友和,同事的计算机上收集各种各样的日志,这些日志用来监控,他们计算机中的低能级活动。

哈佛公开课 - 计算机科学课程节选

Mr Johnston's most extraordinary discovery reveals the young Wordsworth not as an idealistic outsider but as someone very much caught up in the dirty machinations of a country at war: he offers evidence that, during a tour of Germany with his sister Dorothy in the late 1790s, Wordsworth was acting as a paid courier or low-level spy on behalf of the British government.

ECONOMIST: British poets

It is charged at a lower level on low pay and at a higher rate on high pay.

BBC: Balancing the nation's books

With health-care inflation outstripping the ordinary kind and an increasing aversion to higher taxes, Britons' extraordinarily low level of private spending on health may have to change.

ECONOMIST: Health-care reform