英文關鍵字
adult
athlete
athletic
attractive
background
body
caucasian
couple
day
doing
exercise
exercises
exercising
female
fit
fitness
gym
health
healthy
leisure
lifestyle
male
man
men
muscle
muscular
people
personal
plank
planking
power
shape
sport
strength
strong
trainer
training
two
white
woman
women
working
workout