The scientists used a simulated digestive tract to test three cocoa powders.

科学家使用模拟消化道来检验三种可可粉。

Next, they captured birds and flushed their digestive tracts to see what they were eating.

然后，他们捕获了几只鸟并对它们的消化道进行冲洗，目的是看看它们吃了什么。

Second, there are two ascending dorsal column tracts.

其次，脊髓背侧还有两条上行通路。

The bacteria can also infect the urinary tract or open cuts.

这种细菌还会感染尿道或开放性伤口。

XBB mainly invades the respiratory tract, rather than the digestive system.

XBB 主要侵入呼吸道，而不是消化系统。

But it did replicate rapidly the respiratory tracts of both cats and ferrets.

但病毒确实在猫和雪貂的呼吸道内迅速繁殖。

You don't need a steering wheel when the street car follows a tract.

既然是有轨电车 跟着轨道走 又怎么需要一个方向盘呢。

Most of them are in our digestive tract and they help us digest food.

它们大多在我们的消化道中，帮助我们消化食物。

You can see the digestive tract in the middle, and the caterpillar's breathing tubes.

你可以看到中间的消化道和毛毛虫的呼吸管。

Plasma is made mostly of water and salts that we absorb through our digestive tracts everyday.

血浆主要由我们通过消化道每天吸收的水和盐组成。

In Georgia, meanwhile, atheists await guidance from the governor on how to get their tracts into cabins.

与此同时，在佐治亚州，无神论者们等待州长指示如何让他们的宣传小册子进入度假小屋。

During last summer's flood, a large tract of farmland was under water.

在去年夏天水灾期间，一片广阔的农田都淹在水下。

And gets the GI tract moving.

使胃肠道蠕动。

By contrast, the entry molecules preferred by influenza viruses are almost exclusive to the upper respiratory tract.

相比之下，流感病毒首选的进入分子几乎只存在于上呼吸道。

The hemisection damages neural tracts in the spinal cord that carry information to and from the brain.

这种半切损伤了脊髓中为大脑传递信息的神经束。

This seems a little surprising, because consonants and vowels use the same areas of your vocal tract.

这似乎有点令人惊讶，因为辅音和元音使用的是你声道的相同区域。

The gut microbiome is everything in the digestive tract.

肠道微生物群是指消化道中的一切。

The digestive tract can make a seed more fertile.

消化道可以使种子更肥沃。

But your digestive tract doesn't respond to all carbohydrates the same.

但是你的消化道并不是对 所有的碳水化合物都有一样的反应。

Hungry pandas once roamed across vast tracts of bamboo-rich forest.

以前，饥肠辘辘的大熊猫们在竹子密布的大森林里徜徉觅食。