如果你录下这些再在你无法入睡时播放会大有裨益的。
It will help if you get yourself a recording of these and play them back when you are unable to sleep.
数码车牌可以在车辆遇到停顿标示或红灯时播放广告。
Digital plates could display ads whenever a car comes to a halt at a stop sign or a red light.
你能想象一辆印第安赛车手会在比赛时播放背景音乐吗？
Can you imagine an Indy car driver playing musicin the background?
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