Photo taken on Sept 4, 2022 shows e-CNY (digital yuan) payment cards at an exhibition of financial services during the 2022 China International Fair for Trade in Services at the Shougang Park in Beijing, capital of China. [Photo: Xinhua] BEIJING -- Thousands of years ago, in ancient China, traders traveled the Silk Road by camel and horse, overcoming hardship to sell Chinese silk, tea and other specialties to the West, meanwhile importing glass products, pearls, fruit and vegetables from abroad. Now, in a live-broadcasting room at the ongoing 2022 China International Fair for Trade in Services in Beijing, a Sri...