For most music, Schindall explained, a high-end audio system with big speakers might do just fine with a 1-watt amplifier.
2
塔利班分子开火时，美军派出装有大功率扩音器的装甲车，播放重金属摇滚乐，方圆两公里外都能听清楚。
When insurgents open fire, an armored vehicle wired up to powerful speakers blasts out heavy metal and rock music so loudly that it can be heard up to 2 km away.
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