英文關鍵字
action
active
activity
background
ball
challenge
champion
championship
clay
close
closeup
competition
competitivesport
concept
court
entertainment
equipment
exercise
field
fitness
game
green
health
hobby
leader
leisure
lifestyle
line
match
net
nobody
outdoor
outside
play
professional
racket
racketsport
racquet
recreation
recreational
space
sphere
sport
success
tennis
tennisball
tournament
training
white
yellow