Did you just start your period?

是月经来了吗？

Her period is when blood leaves her body, and that is part of her menstrual cycle.

月经就是身体流血，这是月经周期的一部分。

She is about to get her first period.

她月经初潮正要来。

Menstruation is really just a very normal body life cycle.

月经其实只是一个非正的身体生命周期。

I had not begun menstruating when I married.

我结婚时还没有开始月经。

Good data concerning the effects of menstruation on athletic performance are scant.

关于月经对运动响的数据。

There are so many euphemisms that we put on in society to not have to say the word menstruation.

社会上有多委婉语，不用月经这个词。

Her period is late this month.

她本月的月经来得比较晚。

The menstrual cycle usually lasts about 28 days.

月经周期通持续 28 天左右。

'Cause that's why women get their period in the first place.

因为罪孽就是女人有月经最根本的原因。

That whole system occurs on repeat, happening approximately 450 times during a woman's life.

月经现象会重复不断地出现，女人的一生大概会有450次的月经。

Blood and tissue leave the body, forming the period.

血液和脱落的子宫内膜离开身体，形月经。

I guess it's OK. But I didn't know dogs had periods.

可以吧。但我不知道狗也有月经。

But if they're not getting their periods, they're not ovulating and releasing those eggs.

但如果不来月经，就不会排卵和释放卵子。

The first stage of the cycle is menstruation, and occurs if the egg has not been fertilized.

月经周期的第一阶段是月经，发生在卵子尚未受精的情况下。

Perhaps that's just because the lunar and menstrual cycles correlate so closely.

也许这只是因为月球和月经周期密切相关。

But the truth is, menstruation is only one part of one cycle.

但事实是，月经只是一个周期的一部分。

A period is a Get Out Of Jail Free card for everything.

无论你做错什么，月经都是你的免死金牌。

The menstrual cycle starts on the first day of menstrual bleeding, lasts 28 days on average from then.

月经周期开始于月经出血的第一天，平均持续28天。

Additionally, there is a 15 percent value added tax on many menstrual health products.

此外，许多月经保健产品还要加收15％的增值税。