Class 41

arranging and conducting educational courses for students in the field of arithmetic 167663

为学生安排和举办算术领域的教育课程

Chinese 为学生安排和举办算术领域的教育课程

English arranging and conducting educational courses for students in the field of arithmetic

Spanish Organizar e impartir cursos educativos para estudiantes en el campo de la aritmética.