Concentrated in big cities, mixed in with the main shops and on busy sidewalks, their main customers--students, teenagers, office workers--are a tide of people who drift in without being part of any community.
集中在大都市，座落在住商混合、人潮多的大馬路邊，便利商店的顧客﹘﹘學生、青少年、上班族，往往並非社區居民，而是偶然進入的流動人潮。