Narrow alleys is unlikely to hold back the happiness ......
小巷虽然狭窄，却拉不住快乐蔓延的速度……
Roaming beijing 's alleys , shouting vendors sow echoes of the past
穿行在北京的大街小巷，流动小贩播下过去的回声
By some estimates , less than 500 of the 3000 ancient alleys beijing boasted in the early 1980s have survived .
根据一些估算，在上世纪80年代初北京引以为豪的3000条旧胡同中，保存至今的只有不足500条胡同。
T-drive combines mobile data with cloud computing to mine the collective knowledge of back alleys and little-used streets that are intuitive paths for many taxi drivers .
