Someone's coming of age is the time when that person legally becomes an adult and is old enough to vote.

the time when someone matures emotionally, or in some other way

the time when something starts to become successful

the coming of age of democracy in the country 国家民主的日臻完善

done to celebrate the fact that someone is legally an adult

The bar mitzvah and bat mitzvah are Jewish coming-of-age ceremonies. 男孩成人礼和女孩成人礼是犹太人的成年仪式。

a coming-of-age party 庆祝成年派对

relating to or describing the time when someone changes from a child into an adult

This is a coming-of-age story about young love. 这是一个关于青春爱情的成长故事。

a coming-of-age movie/novel 成长电影/小说

The story is based on his own coming-of-age experiences. 这个故事是根据他自己的成长经历写成的。

relating to the fact or showing that something has become fully developed or successful

The Olympics marked a spectacular coming-of-age celebration for the nation. 奥运会的举办成为这个国家进入成熟阶段的辉煌庆典。