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.,Li Hao is a ticket seller on Line 2 of the subway. He wears a yellow plaid uniform and has a white cloth bag slung across his shoulder to hold the fare money.,“This old man seems to be daydreaming.” Wang Kangnian put down the telescope and pondered for a moment, “What is he thinking about”。