There are two main bodies for constructing the system of community security service:one is the community's own security service force, the other is the outside social force.

社区安全服务社会化体系的两大构成主体是社区自身的安全服务力量和外来为社区安全服务的社会力量；

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This also makes it convenient for the data service provider to offer new features in newer service versions and not force all consumers upgrade simultaneously.

这也可以让数据服务提供者方便地在服务新版本中提供新特性，不用强迫所有消费者同时升级。

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And if you have a rock-solid handle on the business of it service delivery you are a force to be reckoned with.

如果你对IT服务交付的处理坚如磐石般的牢靠，你自然就是一支不可忽视的力量。

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Some Americans become doctors by joining the United States Army,Navy, Air Force or Public Health Service.

VOA: special.2009.06.02

Some Americans become doctors by joining the United States Army, Navy,Air Force or Public Health Service.

VOA: special.2010.07.13

He made a commitment to the nation's service members, in a refueling stop at Elmendorf Air Force Base on his way to visiting four nations in Asia.

VOA: standard.2009.11.13

In either case, the upfront cost to Internet providers would be much lower than if they had to pull the fiber themselves, and if the fiber were made available to more than one private company, the competition for service would force pricing for the service to be competitive.

FORBES: Bring On The Broadband With Private/Public Partnerships

The 34 agents used in the tours are one half of one percent of our Secret Service work force.

FORBES: Move up http://i.forbesimg.com t Move down

When HHS came out with a report from the Preventative Service Task Force recommending against women getting a mammogram before they turned 50, American women were, to say the least, upset.

FORBES: Physician Organizations Voluntarily Heal Themselves To Save Healthcare Dollars