- 問題詳情:Travelingbysubwaycansometimesbequiteanadventure,especiallyduringrushhour.Therearethetimeswhenyouhavetoavoidcupsofcoffeethatcouldspill(濺)onyou.Thesmellsofsomepassengers'foodareverystrong,too.AccordingtotheBeijingsubwaypassengerregulations,wh...
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