Sun Shan went to other places to take the imperial examination, and his hometown asked Sun Shan to take his son with him. The son of a fellow villager failed to pass the exam. Although Sun Shan's name ranks first from the bottom, it is still on the list. Sun Shan first returned to his hometown. The fellow villagers came to ask if his son had been admitted. Sun Shan said, "The last one on the list of winners is Sun Shan, and your son is behind me."
Idiom explanation
Leaving Sun Shan means that you can't take exams or try out.
Source: Song Fan Gongzhuo's Record of the Imperial Court: "Wu people are so funny. To carry his county, the villagers entrusted their children to go with them. The villagers are depressed, and the mountain is at the end of the list, so they return first. The villagers asked his son about his gains and losses, and the mountain said,' Sun Shan solved his name, and Xianlang is even outside Sun Shan.' "?
Usage: subject-predicate type; As predicate, attribute and complement; With a derogatory connotation.