Most of the people reading this post work on a computer for 6-10 hours a day, sometimes even more.

大部分人一天对着电脑工作6到10个小时，有时甚至更多。

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Usually when you open an e-mail account (and also on some websites) or you work on a computer, we say you log on / log on, e.g.

通常当你打开电子邮件帐户的时候(有时在打开某个网站时)或者当你在使用电脑时，我们说你要log on /登录。

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As a result, you know that this demo application will work on a computer on which the full Apache Derby database software is not installed.

因此，您知道这个演示应用程序将在未安装完整的Apache Derby数据库软件的计算机上运行。

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The students work with activities on their computer screen and wear a headset and microphone to talk to their tutor.

VOA: special.2011.04.21

When I'm on the computer, forty hours, fifty hours a week for work,

这是因为我一周要对着电脑工作四五十个小时。

如何利用空闲时间 - SpeakingMax英语口语达人

Some users may not realize what they say on a social media site -- whether it be at home or work, on a company computer or a personal computer -- can be grounds for firing.

CNN: Workplace rants on social media are headache for companies

Keen to make Dropbox work on every computer, he spent 20 hours a day trying to reverse-engineer the guts of it.

FORBES: Magazine Article

Ms. Sayeg gets most of her design work done on her MacBook computer while lounging on a black leather couch in her living room.

WSJ: Magda Sayeg, Turning Knitting Into a Public Art | Creating