全球定位系统定位：搞清楚你身在何处，而你应该去。
GPS Locator: for figuring out where you are and where you should go.
当你流落在某个国家，不知身在何处、该往哪儿去，肚子又饿了，需要找些食物之类的，而你却不会讲当地语言时，那该怎么办？
If you're stranded in a country and you don't know where you are or where you're going, and you're hungry and you need some food and so on, but if you don't speak that language, what to do?
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