On average, each user receives at least eight spam messages a week, questionnaires show.

根据调查问卷的统计结果，我国的手机用户平均每周收到至少8条垃圾短信。

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The Rustock botnet, which sent up to 30 billion spam messages per day, might have been run by two or three people.

Rustock僵尸网络平均每天发送300亿封垃圾邮件，或许只由两三个人控制。

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Members promised not to spread unhealthy or illegal information, and make further efforts to wipe out spam messages.

联盟成员做出承诺：不传播不良信息和非法信息，并为扫除垃圾短信做出进一步努力。

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Spam is unwanted sales messages sent to your electronic mailbox.

VOA: special.2009.04.19

Some spam messages contain computer viruses that wreak havoc with the recipients' hard drives.

ECONOMIST: Opening Pandora’s inbox | The

The behavior of such a spam bot is easy to identify as it spews millions of spam messages.

FORBES: How reputation services enhance IPS

Others use Bayesian combinations of individual words that statistically make up spam messages.

BBC: NEWS | Technology | 'DNA analysis' spots e-mail spam