And some chemical breakdown continues in the large intestine, thanks to our little bacterial farm there.

多亏了我们那里的小细菌农场，一些化学分解在大肠中继续。

Now we don't usually think of it this way, but that is where digestion starts — the mechanical and chemical breakdown of food through chewing and enzyme-action.

我们通常不这么想，但消化是从这里开始的——通过咀嚼和酶作用对食物进行机械和化学分解。