加拿大算法公式教程简介：Li Yun said with some confusion: She didn't tell you that her mother was sick. She asked Teacher Yang for leave last night and would not come to school today to go to the hospital to take care of her mother.
Li Yun said with some confusion: She didn't tell you that her mother was sick. She asked Teacher Yang for leave last night and would not come to school today to go to the hospital to take care of her mother.
