哦，它在磁带播放器里。

Oh, it's in the tape player.

她以前用磁带播放器听音乐。

She used to listen to music on a cassette player.

我们需要一个盒式磁带播放器来听这些音乐。

We need a cassette tape player to listen to this music.

它们的设计方案来自于磁带播放器上的固有设计。之所以“播放键”是从左向右的三角，是因为磁带在播放的时候是顺时针方向并且里面的磁条从左向右传送。

They come from the days when recordings were made on tape. The reason the play arrow faces right is because tapes used to spool from left to right when played.