英文關鍵字
asian
backpacks
boy
camera
caucasian
child
copy
day
education
end
enjoying
ethnic
female
freedom
friends
friendship
girl
going
group
haiduong
happy
home
horizontal
informal
jeans
joy
junior
line
male
mixed
multi
old
outdoors
outside
people
portrait
primary
pupils
race
races
racial
row
rucksacks
running
school
schoolchildren
space
time
together
vietnam
year