Some phone companies in the us already offer call-blocking service, allowing the user to block calls from Numbers that are proving a nuisance.

美国的一些电话公司已经提供呼叫限制服务，它能使用户阻挡来自骚扰者的电话。

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Unlike locking, volatile operations will never block, so volatiles offer some scalability advantages over locking in the cases where they can be used safely.

volatile操作不会像锁一样造成阻塞，因此，在能够安全使用volatile的情况下，volatile可以提供一些优于锁的可伸缩特性。

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Companies like Compellent offer storage solutions that are capable of moving data at a block level to different classes of storage as the data ages.

Compellent公司提供的存储的解决方案是在读取数据时能够将数据以块的形式移动到不同类型的存储上。

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Intuit and Block Financial offer tax preparation to low-income filers for free through their Web sites.

CNN: File your 1999 taxes online

Block 34 is the fourth and last ultra-deep block on offer.

ECONOMIST: Angolan oil: Drilling down | The

Ryanair has said that the European Commission has informed the airline that it intends to block its proposed offer for rival Aer Lingus.

BBC: Ryanair says its Aer Lingus bid will be rejected by EU