通过付费激活使用“护照”功能后，这款应用将自动匹配旅客和其他城市的用户。
Using a feature called Passport, which subscribers pay for, the phone application allows tourists to meet and match with users in other cities.
两个护照，三个城市，两个国家，有一天。
今年年底，做为12个中国城市之一，北京将首批推出数字护照。
Beijing will be one of the first 12 cities in China to launch a digital passport program by the end of this year.
你最好去去国外，就是说那些你需要护照才能去，或者使用不同货币，或者你在当地有本地朋友的，又或者你远房亲戚的城市。
It is likely you'll go to a foreign country where you'll need a passport and use different currency, or you may host friends or relatives from afar in your city.
你最好去去国外，就是说那些你需要护照才能去，或者使用不同货币，或者你在当地有本地朋友的，又或者你远房亲戚的城市。
It is likely you'll go to a foreign country where you'll need a passport and use different currency, or you may host friends or relatives from afar in your city.
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