"I still have a bicycle at home, do you want to buy one?" Xiao Lang kept the silver and said.
"A bicycle?" Yang Tianzhi asked, puzzled. "What's that?"
Xiao Lang explained, "It has two wheels. You can ride it, it's very fun. You'll know when I ride it tomorrow."
Yang Tianzhi nodded and said, "I want it!" Do I need a deposit for this too?"
"Yes, 20 taels."
"I don't have that much money with me. I'll bring it back to you tomorrow."
"Sure."
When they arrived at the Academy, as expected, they attracted a crowd of onlookers. Xiao Lang was a generous child, so he lent it to them to play once.
After they played, they liked it even more and came to find Xiao Lang to ask for information."Xiao Lang, where did you buy this?"
"I made it myself. If you want to buy it, give me 5 taels of deposit. I'll give it to you after it's done."
5 taels of silver were not considered money to them, so they all took out silver without hesitation.
