查了一下，德國1935年已經發明磁帶錄音機了，所以，很可能間諜會用。家用的可能要晚得多。

來源: Ohjuice 於 2022-11-01 21:09:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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