Our raw materials were audiotapes and transcripts of a large.
我們的原始材料是一些錄音帶和.
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With both, I was listening to audiotapes within weeks.
依靠這兩個植入物, 我每周都能聽磁帶.
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Audiotapes are a good alternative.
聽錄音磁帶是一種很好的選擇.
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