今天下午,我和妈妈一起去超市购物。一走进超市,我们就来到饮料柜。在各种各样的饮料中,我最喜爱的是“雪碧”。我看了一下,“雪碧”有三种瓶装:小瓶、中瓶、大瓶。买哪一种呢?妈妈说:“哪种便宜就买哪种呗!”听了妈妈的话,我心想:这三种瓶装的重量和单价都不一样,那么我先分别 This afternoon, I went to the supermarket with my mother to shop. As soon as we walked into the supermarket, we came to the beverage cabinet. Of all kinds of drinks, my favorite is “Sprite.” I looked, “Sprite” has three kinds of bottled: vials, bottles, big bottles. Which one to buy it? Mom said: “What kind of cheaper to buy what kind of chanting!” After listening to my mother, I thought: these three bottled weight and price are not the same, then I first respectively