Her daughter studies in the third grade in a junior high school.
她的女儿在一所初级中学读三年级。
Third, the logical structure of teaching materials is renewed, and "one relation", "four rules", and "two images" generalize the optical knowledge in junior high school.
第三，更新了教材逻辑结构，把初中物理光学知识概括为“一个关系”，“四条规律”，“两个成像”；
Third, the logical structure of teaching materials is renewed, and "one relation", "four rules", and "two images" generalize the optical knowledge in junior high school.
第三，更新了教材逻辑结构，把初中物理光学知识概括为“一个关系”，“四条规律”，“两个成像”；
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