Tools such as Razor and Pyzor (see Resources) operate around servers that store digests of known spams.

象 Razor 和 Pyzor（请参阅 参考资料）这样的工具运行在服务器一端，服务器上存储了一些已知垃圾邮件的摘要。

youdao

Electricity comes fitfully: a huge headache for factories that need to operate around the clock to turn a profit.

电力供应时断时续，这让争分夺秒创收益的工厂头痛不已。

youdao

BPM encapsulates the view of the business around how they expect their enterprise processes to operate.

BPM封装业务对其希望企业流程如何操作的看法。

youdao

He and his family operate houseboats and cater to tourists from around the world.

VOA: standard.2009.12.16

The hospitals, chosen because of their similarities to the Friarage, also operate around-the-clock consultant-led maternity and children's services.

BBC: Report 'backs' fight to retain Friarage Hospital services

The unit will operate around the clock providing high profile traffic enforcement on major national routes including motorways.

BBC: New Scots-wide road policing unit unveiled

Electricity comes fitfully: a huge headache for factories that need to operate around the clock to turn a profit.

ECONOMIST: Indian textiles