1.月经;月经期间
1.the process of menstruating
1.How much day calculates safety period after menstruation?
月经后多少天算安全期？
2.An 8-year-old girl is old enough to learn about menstruation, just as a boy that age is ready to learn how his body will change.
一个8岁的女孩已经可以了解什么是月经，就好像一个8岁的男孩应该可以了解自己身体将要发生的变化。
3.Amenorrhea is often after menstruation, menstruation delay has the possibility of developping to amenorrhea.
月经后期进一步加重有可能发展为闭经，在闭经前往往发生月经后期之表现。
4.Menstruation (a period) is a major stage of puberty in girls; it's one of the many physical signs that a girl is turning into a woman.
月经（例假）的来到是女孩青春期中经历的一个重要阶段，它是女孩变为女人的众多生理变化之一。
5.Girls are reaching puberty earlier in the United States, where the average age of menstruation is about 12 years, Deardorff said.
美国女孩总是很早进入青春期，她们月经初潮的年龄大约在12岁左右，Deardorff说。
6.The chapter details the possible effects of anti-gravity on menstruation and fertility, as well as the significance of a child born on Mars.
这一章详细探讨了反重力环境可能对行经和繁殖能力造成的影响，也谈到了在火星上诞生人类婴孩的意义。
7.Also, I 'U have no more menstruation after the operation and my anemia would be corrected.
而且手术后，就没有月经了，我的贫血就可以改善了。
8.So people should be at least in after a month later had sex, had better be in once after menstruation.
所以人流后应该至少在一个月以后再过性生活，最好是在来过一次月经以后。
9.Once there is no estrogen to stimulate the uterine lining, it doesn't get built up, there is nothing to slough, and menstruation ceases.
一旦没有雌激素刺激子宫内膜，子宫内膜将停止生长，并且最终脱落导致月经停止。
10.Uterine contractions are felt as cramps. The amount of Blood lost is usually less than 1. 7 oz (50 ml). Menstruation ends with menopause.
某些女性会因子宫收缩而有痛性痉挛。每次来潮血量通常少于50毫升。月经因停经期出现而结束。