C334

Ling Shuang pulled Ling Bing and squatted on the empty ground in the bamboo forest and spoke in a low voice: "second brother, have you considered how many business associations we have set up and how many goods we need to travel through the north and south? For example, the cotton of Jiangbei can be exchanged for the silk of Jiangnan, the leather of Wuhuan can be exchanged for the salt of Huai