英文關鍵字
active
adult
athlete
athletic
attractive
beautiful
body
caucasian
center
class
doing
exercise
exercising
female
fit
fitness
group
gym
happy
health
healthy
lifestyle
machine
male
man
men
motion
people
person
portrait
power
run
running
shape
smiling
sport
treadmil
treadmill
woman
women
work
working
workout
young