1-C. Interest in portable audio really started to take off in the 1980s with the development of personal music players that allowed listeners to enjoy music through headphones while walking outside.Interest in portable audio really started to take off in the 1980s with the development of personal music players that allowed listeners to enjoy music through headphones while walking outside.  

関心が、ポータブルオーディオにおけるダヨ、本当に開始しました、離陸をダヨ、1980年代にダヨ、開発によってダヨ、個人の音楽プレーヤーのダヨ、それは、リスナーに許しました、音楽を楽しむことをダヨ、ヘッドフォンを通してダヨ、外で歩きながらダヨ。  

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