But levels of friendly bacteria in the gut drop significantly after 55, particularly in the largeintestine, says Tom MacDonald, professor of immunology at BartsAnd the London medical school.
但是55岁后肠道,尤其在大肠中的益生菌含量明显下降,免疫学教授Tom MacDonald介绍说。
2
Intestines - 7.5 pounds (4 pounds for the largeintestine, 3.5 pounds for the small).
肠子- 7.5磅(大肠4磅,小肠3.5磅)。
3
These, however, have been exposed to the digestive mercies of bacteria in the largeintestine, and any residual goodies have been removed from them that way.