At birth, the umbilical cord is cut and the umbilical vein collapses to form the round ligament.

在出生时剪掉脐带后，脐静脉闭锁形成圆韧带。

The umbilical cord wrapped around your neck, and you stopped breathing.

脐带缠住了你的头颈，你停止了呼吸。

And lastly, keeping the umbilical cord free from infection.

最后，保持脐带不受感染。

The enzymes were then guided into the umbilical cord.

然后，这些酶被输送到脐带。

They're floating around on umbilicals here out in space.

它们漂浮在太空中的带子上。

So, it looks like the umbilical cord came off very recently.

因此，看起来脐带是最近才脱落的。

It is connected to the umbilical cord and helps feed the fetus.

它与脐带相连，帮助喂养胎儿。

Then, the doctor cuts the umbilical cord.

然后，医生会切断脐带。

The umbilical cord connects a pregnant mother to her fetus.

脐带把怀孕的母亲和她的胎儿连接起来。

The woman had been receiving the umbilical cord blood to treat her leukemia.

这名女性一直在接受脐带血治疗她的白血病。