和定最值做题口诀简介：Zhao Shun, Zhang Jiabin, Liu Lei, Cheng Keshu, Li Yun, and Li Anran all put their hands on the back of their hands and shouted together, "Three two one, come on!"
Zhao Shun, Zhang Jiabin, Liu Lei, Cheng Keshu, Li Yun, and Li Anran all put their hands on the back of their hands and shouted together, "Three two one, come on!"
