英文關鍵字
fitball
leg
ball
alternating
exercise
raise
workout
fitness
woman
swiss
mat
looped
2d
animation
young
girl
character
training
sport
healthy
female
lifestyle
fit
exercising
athletic
gymnastic
athlete
person
sportswear
health
active
practicing
prores
lady
video
body
activity
stretching
pilates
healthcare
aerobics