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Overall there are 21 different frequencies the recorder can tune into given sufficient time, and who knows?
在充足的时间里记录仪总共能收听21个不同的频率，谁知道呢？
youdao
-
Overall there are 21 different frequencies the recorder can tune into given sufficient time, and who knows?
在充足的时间里记录仪总共能收听21个不同的频率，谁知道呢？
youdao