1 PHRASAL VERB （录完后）播放，放送（磁带、电影等） When you play back a tape or film, you listen to the sounds or watch the pictures after recording them. （录完后）播放，放送（磁带、电影等）
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He bought an answering machine that plays back his messages when he calls. [VERB PREP. noun]
他买了一台能在别人打来电话占线时播放他录音留言的电话答录机。
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Ted might benefit from hearing his own voice recorded and played back. [VERB-ed PREP.]
听自己声音的录音回放对特德可能会有帮助。
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I played the tape back. [VERB noun PREP.]
我回放了磁带。