英文關鍵字
60s
70s
adult
aged
alone
bench
board
brain
caucasian
chess
chessboard
competition
concentration
elderly
exercise
figure
figures
game
grandfather
hobby
intelligence
leisure
lifestyle
male
man
mature
move
moving
old
one
outdoors
outside
park
pensioner
person
planning
player
playing
retired
retirement
senior
sit
sitting
strategic
strategy
think
thinking
thoughtful
vintage
winner