英文關鍵字
active
activity
adult
athlete
athletic
background
body
cardio
cardiovascular
caucasian
club
computer
energy
equipment
exercise
female
fit
fitness
focused
friends
group
guy
gym
happy
health
healthy
indoor
leisure
lifestyle
machine
machinery
male
man
medical
modern
muscles
nature
person
physical
power
run
runner
running
sport
technology
training
treadmill
two
woman
workout