台湾籍旅美老师今天交给我们的句子是：
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.一个最常见却不为人所知的减肥技巧就是当你笑的时候，你就会燃烧脂肪和训练你的腹肌，所以无时无刻都来笑吧！
