The small intestine has three parts: the duodenum, the jejunum, and the ileum.

小肠分为三个部分，分别为十二指肠、空肠回肠。

The middle section is the jejunum, where most of the absorption takes place.

中间部分是空肠，大部分吸收发在那里。

The next section is called the jejunum, and it has long projections on its surface, giving it a large surface area for absorption.

小肠的下一节段叫做空肠，它表面有很多长突起，可增大其表面积以利于吸收。

Unlike the jejunum, the ileum is also capable of undergoing structural and functional adaptations to compensate for the jejunum if needed.

空肠不同，回肠可进行结构和功能上的适应性改变，在必要时代偿空肠功能。

As a result, the gallbladder wall can actually adhere to a nearby structure, most commonly at the duodenum, but occasionally to the stomach, colon, and jejunum.

胆囊壁会因而粘附周围脏器，最常见的是十二指肠，有时也会粘附胃、结肠和空肠。

There's a bacteria called Campylobacter jejuni, which is a common cause of foodborne illnesses.

有一种细菌叫做空肠菌，它是食物中毒的常见原因。

This happens in the small intestine's lower regions, the jejunum and ileum, which are coated in millions of tiny projections called villi.

这一过程发在小肠的下部，即空肠和回肠， 其内壁覆盖着数百万个微小突起， 称为绒毛。

(2) The jejunum, the central section, is the primary absorptive region.

（2）中央部分的空肠，是主要的吸收区域。

In mice, if you inject a large inoculum of Campylobacter jejuni, you induce anxiety in mice.

在小鼠实验中，若注射大量空肠菌，会引发小鼠的焦虑情绪。

Post-infectious irritable bowel syndrome, which is what we refer to when somebody has a change in bowel habits that's happening after an infection, often after an infection like Campylobacter jejuni.

感染后肠易激综合症，这是指某人在感染后出现肠道习惯改变的情况，通常是在感染了诸如空肠菌等病原体之后。