European summit agreed to toughen regulations against old-fashioned incandescent bulbs by 2009 as part of a bid to cut greenhouse gas emissions.是什么意思_European summit agreed to toughen regulations against old-fashioned incandescent bulbs by 2009 as part of a bid to cut greenhouse gas emissions.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句