英文關鍵字
acrobat
acrobatics
activity
agility
athlete
athletic
background
balance
beauty
body
building
caucasian
closeup
concentration
cross
crossfit
definition
effort
energy
exercise
fit
fitness
gym
gymnast
gymnastic
hands
health
healthy
indoors
life
lifestyle
man
muscle
muscular
olympics
people
person
physical
practicing
professional
ring
rings
skill
sport
strength
strong
training
video
weight