The Chinese did not like big mouth in the past, the Chinese thinks in those days, big mouth can bare not cultured tooth, cultured of Chinese woman past is to laugh not grinningly.

• 中国人过去不喜欢大嘴，那时中国人认为，大嘴会露出不文雅的牙齿，中国女人过去讲究的是笑不露齿。