英文關鍵字
black
board
boy
challenge
checker
checkers
chessboard
child
clever
closeup
competition
concept
curiosity
development
draught
education
erudition
game
hand
hobby
indoors
ingenious
intellectual
interesting
kid
learn
learning
leisure
little
male
one
person
play
player
playing
preschooler
schoolboy
serious
smart
sport
strategy
studying
white
winning
young