练习材料: Lesson22 A glass envelope My daughter, Jane, never dreamed of receiving a letter ...
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练习材料: Lesson22 A glass envelope My daughter, Jane, never dreamed of receiving a letter ...
练习材料: Lesson 17 Always young【美音】 任务配置: L0+L1+L2+L4 知识笔记: 前元音[æ] 发音方法: 1)嘴唇向两侧尽量分开,嘴巴张开较...