英文關鍵字
active
activity
background
ball
clay
close
closeup
competition
competitive
concept
cord
court
equipment
exercise
exercising
fitness
game
green
hard
health
individualsport
leisure
lifestyle
line
match
motion
net
object
orange
outdoor
play
professional
racket
recreation
set
sphere
sport
string
striped
success
symbol
tennis
tennisball
texture
tournament
tourney
training
white
winner
yellow