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。

But unlike other bodies of water in the region, the Black Sea is a particularly deep, semi-enclosed basin.

但，不像该地区的其他水体，黑海是特别深且半闭锁式的海湾。

And with the t sound there's a glottal stop, so you stop the t in your throat. Thirty. Thirty-three.

对于 t 的发音，有声门闭锁音，所以你要把 t 的发音卡在喉咙里。30。33。

He had a stroke and developed locked-in syndrome.

他中风并患上了闭锁综合症。

Like Greece, Puerto Rico is a chronically uncompetitive place locked in a currency union with a richer, more productive neighbour.

正如腊样，波多黎哥是长期没有竞争力的地方。被闭锁在和更加富裕生产率更高的邻国建立的货币联盟之中。

It usually takes about a week for a dominant follicle to get selected, and after that happens, the rest of the follicles regress and die off.

优势卵泡的筛选大概要经历周；优势卵泡被募集后，其余的卵泡就会退化闭锁。

All of that excess fluid gets pulled into the afferent lymphatic capillaries, which are closed-ended vessels found throughout the body, even the brain, which is actually discovery made in 2015.

所有剩余的液体流进传入毛细淋巴管；淋巴管是遍布全身的闭锁管道；2015年，科学家发现大脑中也存在淋巴管。

A coma can progress into a persistent vegetative state or even locked-in syndrome, when a person is aware of themselves and their surroundings but cannot speak or move.

当人意识到自己和周围环境但不能说话或移动时，昏迷可能会发展成持续性植物人状态甚至闭锁综合症。

What an amazing milestone, we see that beautiful pattern up there in the sky now almost complete of course it needs to latch, but what an amazing milestone just ahead of it.

多么令人惊叹的里程碑，我们看到天空中的美丽图案现在几乎完成了，当然它需要闭锁，但这真的是令人惊叹的里程碑。

Now, sometimes secondary amenorrhea can occur because of premature ovarian failure - which is when the ovarian follicles undergo accelerated atresia and get depleted before the age of 40, resulting in early menopause.

有时，继发性闭经的原因是卵巢早衰，即当卵巢滤泡加速闭锁，在40岁前消耗殆尽，造成提前绝经。