6. Check your posture 檢查你的身體姿勢
To keep your tummy flat you need to keep your back strong too as the band of muscle around your waist also helps support your spine. So stand up straight and keep your back and stomach muscles taut.
想要保持腹部平坦,同時你也要保持背部強壯。因為你腰部周圍的肌肉群同時也支撐你的的脊柱,因此站直了,就能保持你的背部和腹部肌肉緊湊。