英文關鍵字
abdominal
adult
arm
athlete
athletic
body
bodybuilding
building
caucasian
conscious
dumbbell
dumbbells
effort
exercise
fit
fitness
forceful
guy
gym
gymnastics
hall
health
healthy
heavy
human
indoor
indoors
intense
legs
lifestyle
lifestyles
male
man
muscle
muscular
people
physical
physique
picking
power
sport
strength
strong
sun
tire
training
triceps
weight
workout
young