留美老師帶你每日說英文 第334期:微笑也能減肥?

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臺灣籍旅美老師今天交給我們的句子是：

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.
一個最常見卻不爲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！