rite of passage

a ceremony or event marking an important stage in someone's life, especially birth, initiation, marriage, and death

通過禮儀（指為人生進(jìn)入一個重要階段而舉行的儀式，尤指為出生、命名、結(jié)婚、死亡而舉行的儀式）；人生重大階段的事件