Pinyin: You have changed.
Explanation: It means young.
Source: "Big Book": "Hong Wei, I am a young man. I don't have any great clothes." Biography of Han Shu Li Xun: "Filial piety and filial piety, Huo Guang is the master."
Example: Song Sima Guang's Biography of Sushui Volume I: "The emperor is young and anxious, and most military and political decisions are made in Hantong." "Biography of Ming Sheng in Ming Dynasty": "The first step is for teenagers to run, and their ancestors are their ancestors. It is said that there are Bashu. "