蝴蝶馒头和一条线哪个最罕见

Du Lun happened to cook a few bowls of porridge and left without saying a word when he saw Luo Sang. He immediately entered the door and asked the two of them, Lord City Lord, Lord Zhu. Lord Luosang, where are you going? It's so late at night, why are we in such a hurry?...