英文關鍵字
adult
business
businessman
candid
caucasian
cellphone
commute
commuter
commuting
computer
hands
happy
holding
internet
laptop
lifestyle
male
man
metro
mobile
modern
natural
notebook
passenger
people
person
phone
portrait
public
reading
real
sitting
smart
summer
technology
train
transport
transportation
travel
traveler
underground
user
using
wagon
window
work
working
young