其中软件体系包括了用户界面层、页面服务器层、应用服务群层和数据服务层；

The software architecture consists of Customer Interface Layer, the Page Service Layer, Applied Interface Layer and the Data Service Layer.

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在 Cos Angel，一名服务员为一群青少年提供服务。

In Cos Angel, a waiter served a group of teens.

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至少每隔两周，一群餐饮服务商就把几百英尺的帆布和足够多的彩色灯带到花园里，在盖茨比的巨大花园里布置圣诞树。

At least once a fortnight a corps of caterers came down with several hundred feet of canvas and enough colored lights to make a Christmas tree of Gatsby's enormous garden.

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They do community service activities together and there's different kinds of sororities.

他们会一起做社区服务活动，而这些姐妹群也有自己的分类。

不能错过的派对 - SpeakingMax英语口语达人