英文關鍵字
airport
arrival
bank
blur
business
businessman
busy
center
city
climb
commuter
crowd
destination
escalator
fast
floor
hall
hallway
human
interior
mall
metal
metro
modern
motion
move
movement
passenger
people
person
public
rush
speed
stair
stairway
station
steel
step
steps
subway
terminal
traffic
train
transport
transportation
travel
urban
walk
walkway
way