經(jīng)期的用法和樣例：
例句
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月經(jīng)初期第一次月經(jīng)期，通常發(fā)生于青春期
The first menstrual period, usually occurring during puberty. -
絕經(jīng)期，更年期生命的一個(gè)階段，特征是標志婦女生殖能力終結及以停經(jīng)完成為結束的生理、心理變化
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. -
她正在月經(jīng)期。
She's having a period.
