电动汽车不仅节省能源，降低尾气排放，而且开动起来也更加安静。
WHEN cars run on electric power they not only save fuel and cut emissions but also run more quietly.
太阳能汽车不仅节省能源，而且即使在高速行驶时噪音也很小。
Solar cars not only save energy, and even in the high-speed traffic noise is minimal when.
使用冷水进行空气调节不仅仅是节省能源。
Using cold water for air conditioning saves more than just energy.
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