英文關鍵字
app
application
cell
cellphone
citytrain
communication
commute
commuter
connection
dark
destination
device
direction
evening
gadget
guy
holding
home
life
lifestyle
male
man
means
mobile
motion
movement
night
passenger
person
platform
public
railroad
railway
sitting
smart
smartphone
subway
system
technology
traffic
train
transport
transportation
travel
trip
underground
urban
using
window
wireless