menstrual periods信息详情
n.[生理]月经期
periods───n.周期（period的复数）
menstrual───adj.月经的；每月的；一月一次的
periods cramps───经期抽筋
periods definition───周期定义
briefer periods───短周期
menstrual cup───月经杯（由乳胶、医用硅胶或者热塑性塑料制成的经期用品）
periods kit───周期工具包
critical periods───关键期；[植]临界期
irregular periods───[医]不规则[月经]周期
Girls who have gotten their periods lose some iron every month through their menstrual flow and active kids lose iron through their sweat - weird!───女孩会在每月时期经期失去一些铁而好动的小孩子会通过流汗失去铁——挺奇怪的！
I thought the pain, the headaches, and the missed menstrual periods were normal.───我认为痛苦、头痛、和停经都是正常的。
Many women experience menstrual cramps just before and during their menstrual periods.───很多女性在经期前或经期期间会有痛经的经历。
But missing your menstrual periods is often a sign of decreased estrogen levels.───但是，月经停止通常是雌性激素水平低的标志。
He is also not allowed to divorce his wife if an intimate relation took place between two menstrual periods.───他也不允许与他的妻子离婚，如果他们在两次月经期间发生亲密关系。
During menstrual periods, your uterus contracts to help expel its lining.───月经期间，子宫会收缩帮助子宫内膜脱落。
The McClintock effect, synchronization of menstrual periods, happens when groups of women of reproductive age all live or work together.───当处于发育阶段的女孩子们生活或者工作在一起的时候，她们的月经周期会趋于一致，这就叫麦克林托克效应。
all had an intact uterus and at least one ovary and had had one or more menstrual periods during the previous 3 months.───所有人均有完整的子宫，至少有一枚卵巢，并且在前三个月中有一次或者一次以上的月经期。
Girls may also experience vaginal bleeding between menstrual periods.───女孩之间也可能会遇到月经阴道出血。
For example, both moola bandha and uddiyana bandha are extremely useful in stabilizing menstrual periods .
The menstrual periods were painful and irregular, occurring approximately twice monthly.
Keeping track of menstrual periods -- ovulation occurs two weeks before the next period.
The five women's menstrual periods : tea, pregnant women, after birth , production, menopause.
Twelve is the present average age for the menarche - or start of menstrual periods, which marks puberty.