英文關鍵字
subway
travel
public
urban
train
metro
transportation
transport
underground
carriage
movement
passenger
platform
station
railroad
city
tourism
journey
inside
commute
commuter
transit
metropolitan
moving
door
car
empty
destination
downtown
trip
waiting
rapid
nobody
rail
vehicle
person
metal
new
motion
railway
retro
interior
line
uptown