Bicarbonate helps neutralize the acidic chyme, and raising the pH in the intestinal lumen also helps digestive enzymes work more effectively.

碳酸氢盐能够中和酸性的食糜，还能提高肠腔内的pH值；这也可以提高消化酶的活性。

The large intestine absorbs excess water from the chyme, and that helps condense it into dry fecal matter.

大肠可吸收食糜中多余的水份，如此可将食糜浓缩成干燥的粪便。

It gets the signal when chyme slides into the duodenum, which activates the enteroendocrine cells to release a pair of hormones.

当食糜滑入十二指肠时，它会得到信号，这会激活肠内分泌细胞释放一对激素。

These substances help transform food present in the stomach into a semifluid substance called chyme.

这些物质有助于将胃中存在的食物转化为一种叫做食糜的半流体物质。

The chyme slowly moves through the large intestine through small waves of peristalsis that take place over hours or even days.

在微小幅度的肠蠕动下，食糜缓慢通过大肠；这个过程长达数小时甚至数天。

The pyloric sphincter allows food to pass into the small intestine only after it has been transformed into chyme.

幽门括约肌使食物在转化为食糜后才能进入小肠。

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

（1）只有25厘米的十二指肠，从胃中接收食糜，并协助调节胃排空。

Now, once the stomach is done, doing what stomachs do, the pyloric sphincter opens, allowing the chyme to pass into the small intestine.

当胃部的工作完成后，幽门括约肌便会打开，使食糜顺利进入小肠。

When chyme hits the cecum, it's met by trillions of bacteria that colonize the large intestine - they're collectively called the gut microbiome.

一旦食糜进入盲肠，便立即与数以万亿计的细菌接触；这些细菌定植于大肠，它们统称为肠道微生物群落。

And while homebrewed intestinal juices help digest the chyme that your stomach turns food into, the real power actually comes from the outside helpers — the liver, gallbladder, and pancreas.

虽然自制肠液有助于消化胃将食物转化为的食糜，但真正的力量实际上来自外部助手——肝脏、胆囊和胰腺。

This is where the duodenum lets the stomach know, with hormones and nerve signals, when and how much chyme to release so it doesn't get overwhelmed all at once.

这是十二指肠通过荷尔蒙和神经信号让胃知道什么时候释放多少食糜，这样它就不会一下子被压垮。

After three hours inside the stomach, the once shapely bolus is now a frothy liquid called chyme, and it's ready to move into the small intestine.

在胃里呆了三个小时后，曾经形状匀称的食团现在变成了一种叫做食糜的泡沫状液体，它已经准备好进入小肠了。

So! Once the chyme has worked through your small intestine, it passes through the ileocecal valve and hits the cecum, the first part of the large intestine, where, congratulations, your food is now officially feces!

所以！一旦食糜通过你的小肠，它就会穿过回盲瓣，到达盲肠，大肠的第一部分，恭喜你，你的食物现在正式变成粪便了！

It receives chyme and gastric juices from the stomach through the pyloric sphincter, but it also imports bile from the liver and gallbladder, enzymes from the pancreas, and creates its own homegrown mix of enzymes.

它通过幽门括约肌从胃中接收食糜和胃液，但它也从肝脏和胆囊进口胆汁，从胰腺进口酶，并创造自己的酶混合物。

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，在十二指肠（小肠的第一部分）中，接受来自胰腺的酶。

If you were able to keep down your lunch today, you learned how mechanical and chemical digestion start in the mouth and continue in the stomach, where food is pummeled by acids and enzymes and turned into chyme.

如果你今天能不把午餐吐出来，那你就学会了机械和化学消化是如何从嘴里开始并在胃里继续的，食物被酸和酶击打并变成食糜。

It also plays host to hundreds of species and trillions of individual gut bacteria, which digest whatever chyme your body couldn't, releasing essential B and K vitamins, and some short fatty acids, which the large intestine can still absorb.

它也是数百个物种和数万亿个肠道细菌的宿主，它们消化你身体不能消化的任何食糜，释放必需的维生素 B 和 K，以及一些短脂肪酸，这些大肠仍然可以吸收。