[] 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.由于销售量下降，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