月经初期第一次月经期，通常发生于青春期 The first menstrual period, usually occurring during puberty.
绝经期，更年期生命的一个阶段，特征是标志妇女生殖能力终结及以停经完成为结束的生理、心理变化 A period of life characterized by physiological and psychic change that marks the end of the reproductive capacity of women and terminates with the completion of menopause.
