Now, obviously, not when she's made cranky by the shedding of her uterine lining.

当然啦，她因子宫内膜脱落，而脾气暴躁的那几天可不行。

Fatu, meanwhile, has a degenerated uterine lining.

与此同时，法图的子宫内膜退化了。

And it's too much because we need a thick uterine lining for a very specific reason.

而且它太多了，因为我们出于非常具体的原因需要厚厚的子宫内膜。

So we have this thick uterine lining and now it's got to come out, and how do you stop bleeding?

所以我们有这么厚的子宫内膜， 现在它要出来了，你怎么止血？

If the egg is fertilized and embeds itself in the thick uterine lining, the lining is not shared, and thus menstruation does not occur and the woman becomes pregnant.

如果卵子受精并嵌入到厚的子宫内膜中，内膜就不会被共享，因此月经就不会发生，女性就会怀孕。

If the egg is not fertilized by sperm within 24 hours, the unfertilized egg will die, and the entire system will reset itself, preparing to create a new egg and uterine lining the following month.

如果卵子在 24 小时内没有被精子受精，未受精的卵子就会死亡，整个系统会自行重置，准备在下个月产生新的卵子和子宫内膜。