...
"What is Lihui?" Wang Shouzhe set aside his thoughts on sea merchants and asked curiously.
"Lihui is a building material made from oysters, shells, and such, processed through kiln burning and other methods," replied Chen Fanghua. "When mixed with river sand in the right proportions, it can bond bricks and stones effectively, making them as hard as a single piece. It's often used in noble families or government office city walls. Because its production is limited, it's not cheap. It's normal for you, Young Master Wang, to be unfamiliar with such basic building materials, considering your noble background."
"I see," Wang Shouzhe expressed his realization, delighted, "It's true that traveling ten thousand miles is better than reading ten thousand books; I have gained much knowledge."
