back n.后面；背脊；靠背；后背；后卫vt.支持；后退adv.向后地adj.向后的；后面的；偏远的；过时的；积欠的
play v.玩；比赛；（在运动队中）担当；派...出场；带；踢；击（球）；走（棋子）；出牌；演奏；播放；扮演；假装；上演；发挥（作用）；应付；处理；掠过；浮现；使轻快地活动；（喷泉）喷涌；做游戏n.游戏；戏剧；比赛；发挥作用；玩笑；间隙；闪烁；闪现
详细释义
Verb:
reproduce (a recording) on a recorder;
"The lawyers played back the conversation to show that their client was innocent"
双语例句
So I could play them back day after day. 好让我在以后的日子一遍遍的回放。
Playing the organ, including manual and automatic playing two functions, which also play recordable playback manually. 该电子琴包括手动弹奏与自动演奏两种功能，其中手动弹奏时还可录音回放。
