一天,我和妈妈去商场购物。一进商场,我们发现商场变了样,很多商品上面都有一个牌子:满50元减10元。妈妈说:“你看商场里的东西多便宜,花40元钱就能买到价值50元的物品。”我说:“那我们就多买点,过了几天就又恢复原价了。”妈妈说:“正好我们家有些东西要换了,我们就多买点。” One day, I went shopping with my mother. Into the mall, we found that the mall has changed, a lot of products have a sign above: 50 yuan less than 10 yuan. Mom said: “You see things in the mall and more cheap, spend 40 dollars you can buy 50 yuan worth of goods. ” I said: “Then we buy more, after a few days and restore the original price . ”Mom said: “ Just something in our family is going to be changed, and we’ll buy more. ”