英文關鍵字
activity
background
black
board
boy
boys
challenge
checkers
chessboard
child
childhood
children
closeup
competition
concept
curiosity
development
draught
draughts
education
game
hand
hands
hobby
indoors
intellectual
kid
kids
learn
leisure
people
person
play
player
playing
schoolboy
smart
sport
strategic
studying
team
think
thinking
white
winner
young