Under the 2007 energy law, corn ethanol must be declared to reduce greenhouse gasses by 20 percent and soy biodiesel must do so by 50 percent.是什么意思_Under the 2007 energy law, corn ethanol must be declared to reduce greenhouse gasses by 20 percent and soy biodiesel must do so by 50 percent.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句