英语
西班牙语
西班牙语
英语
单语范例（未经PONS编辑处理）
The pancreatic duct delivers substances such as sodium hydrogencarbonate and digestive enzymes to the duodenum.
en.wikipedia.org Instead, all the digestive enzymes other than initial digestion, are immobilized at the surface of the midgut cells.
en.wikipedia.org In digestive systems, symbiotic bacteria help break down foods that contain fiber.
en.wikipedia.org The gastrodermis contains areas with and others without digestive function.
en.wikipedia.org The digestive system of a lord was held to be more discriminating than that of his rustic subordinates and demanded finer foods.
en.wikipedia.org