[] a source of power, such as fuel, used for driving machines, providing heat, etc. 能源◆solar/wind/nuclear energy 太阳／风／核能◆We have suffered from disappointing sales and higher energy costs. 由於销售量下降，能源成本上升，我们损失不小。◆energy-saving equipment 节能设备◆an energy company/supplier 能源公司／供应商