用不着额外找老师。College board里面每节课都有详细视频，作业，学校给上课学生账号。娃觉得没懂的，就看视频。

来源: youtub 于 2025-04-23 07:43:55 [旧帖] [给我悄悄话] 本文已被阅读：次

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