唐僧师徒四人去西天取经,一天,路过火焰山,又热又渴。孙悟空就让猪八戒去买几个西瓜,给师父解渴。八戒来到集市上,花了50元钱买了四个大西瓜,正要背起西瓜往回赶,这时,有个老头儿非要出60元钱把这几个西瓜买走,八戒一寻思:转手就能赚10元钱,西瓜再去买就是。于是就卖给了那个老头儿。拿着60元钱,八戒找到了西瓜摊,谁知这时西瓜涨价了,四个西瓜需要80元钱,看着越来越热 Tang monk mentor four people to learn from the West, one day, passing Huoyanshan, hot and thirsty. Monkey King let Pig Pig to buy a few watermelons, to Master quench their thirst. Journey to the market, spent 50 yuan to buy four large watermelon, watermelon is about to be back to catch up, this time, there is an old man have to pay 60 yuan to buy these few watermelons, Baqu a thinker: change hands can earn 10 yuan, then buy watermelon is. So sold to that old man. Holding 60 yuan, Taboo found a watermelon stand, who knows when watermelon prices, and four watermelons need 80 dollars, watching more and more hot