名詞 play back:

1. the act of reproducing recorded sound
   同義詞：playback
2. electronic equipment comprising the part of a tape recorder that reproduces the recorded material
   同義詞：playback

動詞 play back:

1. reproduce (a recording) on a recorder
   同義詞：replay

1. I rewound the cassette and played her voice back to her.
   我把錄音帶轉(zhuǎn)回去，把她的聲音放給她聽。
2. I will play back the passage, please listen carefully.
   我要重放這一段話的錄音，仔細(xì)聽著。
3. I am going to play back part of the statement you made to the police.
   我打算重放一遍你對警方作的那部分供詞。
4. It is not possible to play back a tape on the vcr in this configuration, since there is no audio input for the vcr.
   在這種配置中，不可能在VCR上播放盒帶，因為VCR上沒有音頻輸入。