英文關鍵字
action
active
activity
adult
arms
athlete
bad
ball
caucasian
challenge
competition
court
exercise
exercising
failure
fitness
game
games
health
healthy
hitting
joy
leisure
lifestyle
loosing
male
man
one
people
person
play
player
players
playing
point
practicing
professional
racket
racquet
recreation
serve
sport
sports
squash
summer
tennis
training
upset
workout
young