英文關鍵字
active
activity
artificial
background
ball
blue
challenge
clay
closeup
compete
competition
competitivesport
concept
court
equipment
exercise
game
green
hard
hardcourt
health
healthy
leader
leisure
lifestyle
line
match
net
orange
outdoor
play
professional
racket
recreation
service
sphere
sport
sporting
string
tennis
tennisball
tenniscourt
texture
tournament
tourney
training
victory
white
win
yellow