Tram Line 2 runs from Shipaipu to Xujiahui, passing through bustling areas like Fada Road and Jinshenfu Road. It is the most important transportation line in the French Concession.,When Cheng Qianfan took the tram at that time, Lao Liao pretended to get on the tram. The two would have contact at this moment, secretly and quickly completing the transmission of information or items.,“This old man seems to be daydreaming.” Wang Kangnian put down the telescope and pondered for a moment, “What is he thinking about”。