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play back能分开写吗

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play back能分开写吗
play back 动词短语
v.把…打回给对方;后退一步接球;(录完后)播放,重播,放送(磁带、电影等)
例:When you play back a tape or film,you listen to the sounds or watch the pictures after recording them.
I played the tape back.
playback 名词
n.(已录好的录音带、录像带的)回放,重放
例:The playback of a tape is the operation of playing it on a machine in order to listen to the sound or watch the pictures recorded on it.
I heard a playback of one of the tapes.
再问: 那当动词短语时有回放的意思吗
再答: 重播磁带,回放电影,这个用多了就比较灵活了,大家都能明白的。