These sounds can best be heard in the beginning of the winter just as the lake has frozen to ice. As the surface of the ice gets thicker, it creates a strong tension in the ice until it cracks.

刚入冬的时候就这些声音最好时机。就湖水刚刚开始结时，就湖水刚刚开始结时，当湖水表面的变厚，它产生了强烈的扩张，直到裂。

During the follicular phase of the menstrual cycle, the endometrium thickens in case fertilization occurs, during the luteal phase, spiral arteries emerge to bring more nutrients to support the thick endometrium.

在月经周期中的卵泡期，子宫内膜会变厚，有助于受精；黄体期，螺旋动脉产生可以为增厚的子宫内膜提供更多养分。

To add volume to your hair means to make it thicker.

让头发看起来更丰盈意味着使头发变厚。

This will help thicken their skin and close off any small cuts.

这将有助于土豆皮变厚以及封闭土豆任何小的损处。

You know, you get older, and you think your skin is thicker. - It's okay.

你知道，人们以为年纪大了，脸皮也会变厚，承受能力会变强。 - 没关系的。

Your blood thickens which slows down nutrients and oxygen getting to your muscles and organs.

血液变厚就会减慢了营养和氧气进入肌肉和器官的速度。

And because the steroids thicken all muscles in your body, your voice goes.

胆固醇类药物可以让你的全身肌肉变厚，所以声音也就更粗了。

As the atmosphere gets thicker, everything gets better.

大气变厚之后 一切都会好起来。

Historically, when the sun has been shining on the Arctic in the summer, 24 hours a day, most of the sunlight has been reflected by multiyear ice, which takes quite a while, many years to grow and become really bright.

从历史上看，当太阳在夏天一天 24 小时照射北极时，大部分阳光都被多年射了，而需要相当长的时间，许多年才能变厚并变得真正明亮。

Estrogen is produced by the ovaries and causes the uterus, lining the endometrium, to thicken again after menstruation so that it is ready to receive an embryo.

雌激素由卵巢产生的，它使子宫内膜在月经后再次变厚，以便为胚胎的形成做好准备。

Now the initial stage, it'll actually look like it's getting thicker and you'll think, " How am I adding in liquid yet it's getting thicker? "

现在，在最初的阶段，它看起来会越来越厚，你会想，“我怎么加入液体，它还在变厚？”

One reason that asthma makes it hard to breathe is that it causes a lot of irritation and swelling, making the walls of the airways get thick.

哮喘使呼吸变得困难的原因之一会引起许多激惹和肿胀，使呼吸道管壁变厚。

In prophase 2, we see the disappearance of the nucleoli and the nuclear envelope again as well as the shortening and thickening of the chromatids.

在前期 2，我们看到核膜消失，染色单体变短变厚。

If blood flow's reduced or the myocardium is thicker, blood has a harder time reaching this deeper layer just under the endocardium, called the subendocardium.

一旦血流减少或心肌变厚，血流便难以到达最深，即心内膜下。

In capillaries, the basement membrane can thicken and make it difficult for oxygen to easily move from the capillary to the tissues, causing hypoxia.

在毛细血管中，基底膜会变厚，使氧气不能轻易地从毛细血管穿到组织中，从而造成缺氧。

It allows the duck to be kept for storage easily, and more importantly, it causes the skin to be thickened.

它能使鸭子更易保存，更重要的，这一步能让鸭皮变厚。

Though there are still gaps in the fossil record, the first step seems to have been a thickening of the ribs.

尽管化石记录仍然存在断档，但第一步似乎肋骨变厚。

Researchers say they've found the first clear evidence that the thinning of the ozone layer above Antarctica is starting to heal.

研究学家首次发现南极上空臭氧变厚证据。

And too much CO2 can thicken plants' leaves, which actually makes them less efficient at pulling it from the atmosphere.

过多的二氧化碳会使植物的叶子变厚，这实际上会降低它们从大气中吸收二氧化碳的效率。

The extra fluid in the walls of the airway, makes the walls thicker and narrows the airway.

气管壁中额外的液体使气管壁变厚，气管因此变窄。