威尼斯小镇上有一个酒铺,里面的酒味道醇正,销量很好。一天,酒铺又卖出了很多酒,最后只剩下6桶,容量分别为30升、32升、36升、38升、40升和62升。其中5桶装着葡萄酒,1桶装着啤酒。后来,一位顾客买走了两桶葡萄酒。没多久,又有一位顾客来买葡萄酒,他买走的葡萄酒是前一位顾客的两倍。 There is a wine shop in the town of Venice, which has a good taste and good sales. One day, the wine shop sold a lot of wine and left behind only 6 barrels at a capacity of 30 liters, 32 liters, 36 liters, 38 liters, 40 liters and 62 liters respectively. Five of the barrels contain wine and one barrels of beer. Later, a customer bought two barrels of wine. Soon after, another customer came to buy wines, and he bought twice as many wines as the previous customer.