英文關鍵字
adult
back
background
backpack
boy
business
businessman
businesswoman
busy
caucasian
child
childhood
city
class
commuting
corporate
downtown
education
female
friend
friendship
girl
group
home
hour
hurry
kid
legs
life
lifestyle
male
man
movement
outdoor
outside
person
rear
road
rush
school
schoolgirl
street
students
summer
teenager
together
walk
walking
woman