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蜜芽传媒 Media English “媒体英语”: Deaf sheepdog learns how to herd using 'sign language' 失聪牧羊犬通过识别手势指令放羊
How did Peggy come to understand hand signals and body language? Find out in this Media English
How did Peggy come to understand hand signals and body language? Find out in this Media English
