分级读本 meaning in Chinese

graded reader

We also offer products suitable for private tutors or parents who teach their children themselves , story books of various levels with cd , science and math text and activity books , phonics books and dvd , all of which are award winning books in their respective countries and recommended by english teachers
另有适合家长或家教老师使用的进口故事书，有声cd分级读本，自然科学、数学读本及课本，自然发音学习课本及教学dvd ，都是国外得奖与美语教师推荐之作品。