harmless microorganisms (as Escherichia coli) that inhabit the intestinal tract and are essential for its normal functioning
双语例句
Inulin supports the natural balance of the intestinal flora, regulates intestinal activity and strengthens the body's natural defence system. 菊粉能够促进肠菌类自然平衡,调节胃肠蠕动,增强人体免疫力。