飞利浦灯具公司的高管Theovan Deursen说，一个普通的照明白炽灯泡值一欧元，一年用的电值15欧元。
A standard incandescent light bulb costs around EURO1, says Theo van Deursen, chief executive of Philips Lighting, and USES EURO15-worth of electricity a year.
飞利浦灯具公司的高管Theovan Deursen说，一个普通的照明白炽灯泡值一欧元，一年用的电值15欧元。
A standard incandescent light bulb costs around EURO1, says Theo van Deursen, chief executive of Philips Lighting, and USES EURO15-worth of electricity a year.
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