2016
accident
alley
amazing
attention
between
bicycle
business
carrying
color image
cross
dangerous
delivering
direction
economy
forward
hanoi
hazard
horizontal
life
living
middle
narrow
neighborhood
occupation
people
poor
poverty
problem
quarter
quiet
relaxation
risky
route
safety
salesman
security
selling
strange
threat
toughness
track
train
transportation
unsafe
vietnamese
working