英文關鍵字
adult
arm
athlete
athletic
background
biceps
body
bodybuilder
bodybuilding
caucasian
energy
equipment
exercise
fit
fitness
guy
gym
health
healthy
heavy
human
lifestyle
male
man
model
muscle
muscular
person
pose
posing
power
sport
strength
strong
torso
trainer
training
triceps
weightlifting
workout