插电式混合动力汽车比单纯汽油动力汽车的废气排放量更少，尤其是当他们使用电源运行时，完全不会产生废气。
Plug-in electric hybrids give off less exhaust than gas guzzlers. And when they're running on battery power, they generate no fumes at all.
发行于单曲中的现场版本与《MTV不插电演唱会》版本中的版本不完全一样，是经过修改的版本，其前奏和结尾部分都被剪掉了。
The live version released on the single is not the same as the version found on the MTV Unplugged album; it was edited and the intro and outro were faded.
工业分析人士预测到2020年约有10%的汽车要么完全是由电池驱动，要么就是采用插电式混合动力系统；在那之后，电动汽车的普及将会加速进行。
Industry forecasts suggest that by 2020 about 10% of new cars will be either entirely battery driven vehicles or plug-in hybrids, with accelerated growth thereafter.
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