What is the pronunciation of weak crown

Pinyin of weak crown

[ruò guàn]

[Definition]: [coming of age at 20] ancient times When a man is twenty years old, he is crowned, which means he is an adult, but his body is not yet strong, so he is called weak crown. Later, it generally refers to the age of a man in his twenties. Twenty is called weak crown. -- "Book of Rites. Qu Li" The weak crown is different from the soft Han, and Zhuo Luo watches the group of books. --Zuo Si's "Ode to History" I am weak in Guangdong, and you are saddened by your clothes. --Qing Dynasty. Yuan Mei's "Essay on Sacrifice to Sisters" contains only one scholar, who is young and has not yet married a wife. --"Surprise at the Second Moment"