每日口說挑戰 快速減肥好方法？

今日挑戰句子

A very common weight lost trick that people may not know is actually when you laugh you're burning fat and working your abdominal muscles. So just start laughing all the time.

一個最常見卻不為人所知的減肥技巧就是當你笑的時候，你就會燃燒脂肪和訓練你的腹肌，所以無時無刻都來笑吧！