Next there's fetal lie, which describes how the fetus is positioned in the uterus.

接着是胎产式，指胎儿在的位置。

Another finding is that the cells lining a woman's uterus have a larger-than-expected influence on the length of pregnancy.

另一个发现是，女性的细胞对妊娠期的影响远超过预期。

According to time. com, there are many factors that affect a baby's development as it grows within the womb.

据《时代周刊》报道，有很多因素会影响婴儿在的发育。

Now a study shows that vitamin C supplements can help alleviate at least some of that in utero harm.

而现在一项研究显示维生素C补充营养素助缓解至少一部分由于吸烟造成的危害。

Why, in light of such negative effects, have humans evolved to be programmed this way while still in the womb?

发现这种消极效应后，科学家们不禁问道，为何人类还在的时候就被设立这样的一个进化程序呢？

Of course, vitamin C will not eliminate the other long-term health risks linked to tobacco exposure in the womb.

当然维生素C并不能消除烟草所造成的其它长期健康隐患。

Babies already respond better to the language they were exposed to in the womb.

婴儿已经对他们在接触到的语言做出更好的反应。

Well, it seems that your I.U.D.

好象你的避孕器。

A pregnancy normally lasts about 40 weeks. An infant is considered full term if the baby is born after 37 weeks in the mother's womb.

妊娠期通常为40周。若婴儿在的生长周期达37周后出生即为足月生产。

The artificial uterus is connected to a system that continuously introduces amniotic fluid: a fluid that helps the baby develop in the uterus.

人造连接一个持续注入羊水的系统，羊水是一种助婴儿在发育的液体。

Eggs are taken from a donor, fertilized, and then implanted into the hormonally prepared uterus of the woman with premature ovarian failure.

从捐赠者体取出卵，受精，然后植入卵巢早衰妇女经激素准备的。

The shape, also, of the pelvis might affect by pressure the shape of certain parts of the young in the womb.

骨盆的形状也能通过压力影响胎儿某些部位的形状。

Chimerism can come from a twin in utero, from a tissue or organ transplant, or happen between a fetus and a pregnant woman.

嵌合体能来自的双胞胎，来自组织或器官移植，或者发生在胎儿和孕妇之间。

HCG is produced in the earliest stages of pregnancy and starts a game of telephone that tells the body not to shed the inner lining of the uterus that month.

孕早期人体会产生 HCG，随后开始电话游戏，告诉身体那个月不要流出的薄膜。

This exposure increases the risk of long-term respiratory problems, especially in young children and even babies in the womb, as well as heart attacks, stroke and diabetes in adults.

这种暴露会增加长期呼吸系统问题，尤其是幼儿甚至的婴儿，及增加成年人的心脏病发作、中风和糖尿病的风险。

Once implanted, the cells that are to become the placenta secrete a hormone that signals to the ovulated follicle that there is a pregnancy in the uterus.

一旦植入，将成为胎盘的细胞会分泌一种激素，向已排卵的卵泡发出怀孕的信号。

Most famously, he fought for eight years for proper compensation for children crippled in utero by the drug thalidomide-thereby exposing a heartbreaking scandal and making the manufacturers, Distillers, face justice.

最著名的是，他用八年时间为因服用萨力多胺镇定剂在致残的儿童争取适当赔偿，从而曝光一桩令人心碎的丑闻，让制造商和生产商面临正义的审判。

So first, I want to share the results from a joint project I started 15 years ago, in which I grew two small organs, that secreted testosterone, in my uterus.

首先，我想分享我 15 年前开始的一个合作项目的成果，在这个项目中，我在我的培育两个分泌睾酮的小器官。

Right now, the big frontier seems to be lowering sexual transmission, because we have apparently caused great decreases in the mother-to-child in utero transmission. How come that is so much more stubborn?

现在，最大的前沿似乎正在降低性传播，因为我们显然已经导致母婴传播的大幅减少。为什么会这样顽固呢？