民以食为天，食以净为先。多好的美酒佳肴，若是与“煮熟的红头大苍蝇”为伍，也会让人倒尽胃口，然而，若是豆豉不是“苍蝇”呢，饭店岂不比窦娥还冤。为了证明自己的清白，饭店不得不请“红头苍蝇”出来“献身”说法── People eat fresh, eat clean first. How good food and wine, if it is with the “cooked red head flies”, will make people overwhelming appetite, however, if the bean curd is not a “flies”, the hotel would not injustice Dou’e. In order to prove its own innocence, the restaurant had to ask “red flies” out “dedication” argument ─ ─