阶梯倍投和进一退二简介：In this room, except for Li Jiajia, who was an old classmate in junior high school, Lin Yiran didn't know the other boys. Under Li Jiajia's introduction, he introduced Zhao Shun and Liu Lei one by one and said hello.
In this room, except for Li Jiajia, who was an old classmate in junior high school, Lin Yiran didn't know the other boys. Under Li Jiajia's introduction, he introduced Zhao Shun and Liu Lei one by one and said hello.
