Preparing for the math competition, deriving the second level conclusion.
Chu Huan: I can't learn.
Gu Nanyan: This is very simple. Don't be afraid, I will teach you again!
Chu Huan: No.
Gu Nanyan (aggrieved): Don't you want to participate in the math competition with me?
Chu Huan (singing): If the concubine and the concubine are traveling together, won't it hinder the king from killing his enemies? No matter what, I am willing to kill myself in front of you with the sword on your waist!
Gu Nanyan:? ! Okay, okay, don't learn anymore, don't learn anymore!
Intention: growth, warmth