Each service can only serve a certain type of request.

每个服务只能服务某种请求类型。

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That combination can then serve as a service itself.

接着，这种组合可以作为服务本身来服务其他组件。

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You can combine this with the HTTP implementation to provide a lightweight service to serve up the contents of a file, updating the data returned as the file content is modified.

可以通过结合使用计时器和HTTP实现提供轻量的服务，从而自动地提供文件内容，在修改文件内容时更新返回的数据。

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Military service is voluntary, and less than one percent of Americans serve.

VOA: special.2011.07.08

Next year, 30 young men carefully vetted from a pool of 300 volunteers will receive a yearlong deferral of their military service to serve with the Guardsmen.

CENTERFORSECURITYPOLICY: Israel's unwavering Guardsmen

On Monday, the United States Justice Department asked the Miami Federal Court to enable the Internal Revenue Service to serve a "John Doe" summons to UBS. This would allow it to obtain information about possible tax fraud by people whose identity is unknown.

FORBES: Magazine Article

Due to their religious observance, most Orthodox girls opt to do national service rather than serve in the military.

CENTERFORSECURITYPOLICY: Israel's reeducation minister