英文關鍵字
abstract
and
asia
asian
buildings
bus
business
busy
capital
center
chicago
city
commerce
commuters
consumerism
consumers
downtown
electric
escalator
from
good
hand
illinois
infrastructure
life
lifestyle
metro
people
point
populated
population
public
riding
shopping
stairs
stores
street
streets
subway
traffic
transit
transportation
travel
urban
view
walking
work