photovoltaicKK [ˏfotəˏvolˋteɪk] /ˌfoʊtəˌvoʊlˈteɪɪk/发音形容词1光电的、光伏的、太阳能发电的They installed photovoltaic panels on the roof to cut electricity costs.他们在屋顶装了太阳能光电板,以降低电费。名词1光电技术、太阳能发电常用复数Photovoltaics has become much cheaper over the past decade.光电技术在过去十年间变得便宜许多。用这个字练口说→