英文關鍵字
action
active
activity
adult
amateur
arms
athlete
ball
caucasian
challenge
competition
court
exercise
exercising
fitness
game
games
happy
health
healthy
high
hitting
joy
leisure
lifestyle
male
man
member
motion
one
people
play
player
players
playing
professional
racket
serve
shots
slow
sport
sports
squash
strong
successfully
summer
tennis
training
workout
young