n.行经，月经来潮

She always experiences cramps during her menstruation.
她在月经期间总是感到腹痛。
The onset of her menstruation marks the end of her fertility window for the month.
月经开始意味着她这个月的生育期结束。
She uses tampons when she has her menstruation.
她在月经期间使用卫生棉条。
It's important for girls to have proper education about menstruation.
对女孩子来说，了解月经是很重要的。
Many women find it uncomfortable to talk openly about their menstrual cycles.
许多女性觉得公开谈论月经周期很尴尬。
Menstruation is a natural biological process that all women go through.
月经是所有女性都会经历的自然生理过程。
She decided to start using a menstrual cup for environmental reasons.
她出于环保考虑决定开始使用月经杯。
Some women experience irregular periods or heavy menstruation, which can affect their daily life.
有些女性月经不规律或经血过多，这可能影响她们的日常生活。
Menstrual pain management is an essential part of healthcare for many women.
对许多女性来说，管理月经疼痛是保健的重要部分。
A period tracker app can help women keep track of their menstruation cycle.
月经追踪应用可以帮助女性记录她们的月经周期。