“发票发票,发票发票”“要不要发票?”相信不少骑车、走路的北京市民,尤其是中年男人,早已熟悉这种低低的询问声了。这种声音是某个站在路边的外地男女在你擦身而过的一刹那间发出的。他们发出这种声音时基本看不出任何口型动作,只是嘴唇微微翕动,跟地下工作者传递接头暗号似的。第三者几乎 “Invoice Invoice, Invoice ” “Do not want invoice? ” I believe a lot of riders, walking Beijing citizens, especially middle-aged men, already familiar with this low ask. This voice is sent out by the moment when a field male and female standing on the side of the road pass by. When they made this kind of sound, they basically could not see any mouth movements, only the lips moved slightly and communicated with underground workers like the sign of the joints. Third party almost