消化道中数万亿微生物组成的生态系统，影响免疫、情绪和代谢。
The ecosystem of trillions of microorganisms in the digestive tract that influence immunity, mood, and metabolism.
消化道中数万亿微生物组成的生态系统，影响免疫、情绪和代谢。
The ecosystem of trillions of microorganisms in the digestive tract that influence immunity, mood, and metabolism.