当然，如果用户这样做了，那实际上Fours quare作为工具就变得毫无用处，所以说只要用户在使用Fours quare，一般情况下就会有不同类型的数据泄露发生。
Of course, Foursquare would be rendered virtually useless as a tool if a user did this so there is typically always some form of data exposure occurring when someone USES Foursquare.
以往一些方法采集的GPS数据繁杂无用且难以存储，不能适用于大型物流导航定位的实际需要。
Some methods of GPS data collection and storage, is multifarious useless cannot be used in large logistics navigation and positioning of the actual needs.
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