What do you mean, Prince Longsheng, mouse burrows and doesn't go into the second room?

The sentence "The dragon gave birth to the prince's mouse hole, and the family did not enter the second house" means that the dragon gave birth to the prince and the mouse hole, and the family was not allowed to enter. Its origin is: Legend has it that there was once a farmer with a son at home. His son is the oldest, just like a prince, and his parents love him very much. But later, my parents gave birth to another son. As soon as this son was born, he went into a rat hole, and my parents stopped loving him. This story tells us that parents have a preference for their children. They will prefer those cute children, such as princes, to those who behave strangely.