Traditionally they have made billions by selling their programs, often demanding hefty sums to install them and then charging an annual maintenance fee for upgrades and technical support.

之前他们卖程序，这通常是需要斥巨资进行安装，再收取不菲的年维护和升级费用，可以大赚一笔。

youdao

Of course, the job is one of the most demanding in the humanities, (any mother care to disagree?) and I often work 14 hours a day, (24 is more like it).

当然，我的工作是人类要求最高的工作之一(有哪位母亲会反对吗？)我通常工作一天14小时(24小时更为准确)。

youdao

When I had two small children and a demanding job, I tried valiantly but often found myself at the end of the day praying in vain: "Dear God, just one more hour, please."

当我育有两个小孩，还应付着一份严肃吃力的工作时，我也竭力调和矛盾，但是我常常只能在一天结束的时候徒劳地祈祷：“上帝啊！”请再给我一个小时吧！

youdao

Jobs could get away with being demanding, cajoling, and often demeaning to his engineers in a way that Cook simply cannot.

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Former director of operations at Cardiff Bus, Keith Prowse said in a statement to the court: "Colin is one of nature's busmen and has a natural aptitude for this often demanding job".

BBC: NEWS | UK | Wales | South East Wales | Bus driver cleared in boy death case

The unseemly push for civil service jobs in the 1870s and 1880s often came at the hands of vets demanding favors in the form of federal employment.

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