英文關鍵字
abstract
adult
arrival
background
blue
blur
blurred
business
city
commute
crowd
crowded
fast
group
hour
journey
life
lifestyles
men
metro
modern
motion
move
occupation
passage
passenger
people
person
platform
public
railroad
railway
rush
speed
station
subway
technology
track
train
transit
transport
transportation
travel
tunnel
underground
urban
wait
way
young
zoom