He's suffering the pains of duodenal cancer.

他正遭受肠癌的痛苦。

Normally, trypsinogen isn't activated until it is cleaved by protease enteropeptidase which is found in the duodenum.

通常情况下，胰蛋白酶原在被肠的肠肽酶切割之后才会被激活。

(1) The duodenmn, which is only a 25cm section, receives chyme from the stomach, helps regulate gastric emptying.

（1）只有25厘米的肠，从胃接收食糜，并协助调节胃排空。

The pancreas is along the lower curvature of the stomach, close to where it meets the first region of the small intestine, the duodenum.

5。胰腺在胃大弯附近，靠近胃与小肠（肠）相接的部位。

But the result though was this, things that would go into the stomach instead of going out into the duodenum, the small intestine, could go out of this hole, and that was the fistula.

但结果却是这样：原本应进入胃而非进入肠（小肠的一部分）的物质，现在却能从这个洞口流出， 这就是瘘管。 从某种意义上说， 他的胃既救了他，也害了他，可怜的阿列克谢。

Next, the food travels down through the esophagus to the stomach, where mechanical and chemical digestion continues, the muscular walls of the stomach contract vigorously to mix food with gastric juice, producing a mixture called chyme.

液化食物逐渐进入小肠，在肠（小肠的第一部分），接受来自胰腺的酶。