Participants take part in a colloquium on acupuncture during the 15th World Congress of Chinese Medicine (WCCM) in Rome, Italy, Nov. 17, 2018. Traditional Chinese medicine helps promote sustainable agriculture, as it offers a holistic approach to disease prevention while using organic herbal products often grown by small-scale family farmers, the UN Food and Agriculture Organization (FAO) chief said here Saturday. (Xinhua/Cheng Tingting)