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基于地理位置的服务如foursquare的签到已经流行到不能再流行了,签到的概念已经从foursquare开始蔓延到更多的领域了,那就让咱们一起看看还有哪些可以签到的!
Based on the location of services such as foursquare sign has been popular to no longer popular, the concept of sign-in has begun to spread from foursquare to more areas, then let’s look at what else can check in!