puberty
n. 青春期，发育期；开花期
例句
Moesha had reached the age of puberty.
莫莎已到了青春期年龄。
《柯林斯英汉双解大词典》
Most traditional societies have transition rites at puberty.
大多数传统社会在青春期举行过渡仪式。
Menstruation (a period) is a major stage of puberty in girls; it's one of the many physical signs that a girl is turning into a woman.
月经（例假）的来到是女孩青春期中经历的一个重要阶段；它是女孩变为女人的众多生理变化之一。
