英文關鍵字
airport
arrive
automatic
bumpy
climbing
commute
commuter
convenience
conveyor
drive
driver
drivers
fast
forward
front
gray
grey
industrial
infrastructure
journey
lazy
lift
machine
mechanical
metro
metropolis
metropolitan
mine
modern
move
physics
ride
ridges
rise
seat
shake
speed
station
steel
steps
structure
subwey
system
train
transport
transportation
tube
tunnel
turn
underground
upwards
view
walking