Hackers are said to have started a computer virus.

据说黑客们已开始传播一种计算机病毒。

《柯林斯英汉双解大词典》

A computer virus titled "ILOVEYOU" has caused havoc in the United States after crippling government and business computers in Asia and Europe.

一种主题为“我爱你”的电脑病毒在美国引起了大混乱，亚洲与欧洲的政府和商业电脑已经先期遭到严重破坏。

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So, though, has many a computer virus.

所以，计算机存在病毒。

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"We've also learned a lot about the virus from mathematical and computer modeling.

VOA: standard.2010.02.16

This might not sound like much to a human, but to a computer virus it is an age.

ECONOMIST: A new way of thwarting viral epidemics on computers

Computer systems at energy firm RasGas have been taken offline by a computer virus only days after a similar attack on oil giant Aramco.

BBC: Computer virus hits second energy firm

While a computer virus requires some sort of human intervention to be launched, such as opening an e-mail, a worm takes off on its own.

CNN: Sasser worm rips through Internet