英文關鍵字
abdomen
abdominal
activity
belly
body
burning
calories
crunches
difficulties
doing
effort
exercise
exercises
fat
fitness
floor
genetic
goal
health
healthcare
healthy
home
laziness
lazy
lose
loss
lying
male
man
mat
motivation
obese
obesity
overweight
power
predisposition
problem
purposeful
resting
situps
sport
strength
stunt
tired
top
training
view
weight
will
workout