研究了好几个晚上,还是买下了学而思旗下的abc time77reading a- z
raz从难度级别角度,分aa,a-z, z1,z2一共29个级别,和不同年级美国小
03.reading a-z 系统性强,分级细致合理
群内除了raz产品使用讲解,还有英语干货讲座分享和用户
raz reading a-z all levels
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