英文關鍵字
active
activity
background
ball
challenge
champion
clay
closeup
competition
concept
court
equipment
exercise
exercising
game
green
hardcourt
health
leader
leisure
lifestyle
line
match
motion
net
open
outdoor
outside
play
professional
racket
recreation
recreational
rubber
set
sign
sphere
sport
string
striped
success
tenis
tennis
tennisball
tournament
training
victory
white
yellow