今天我們要學的詞是 renewable. Renewable 形容詞,意思是可再生的,可更新的。President Obama is ordering federal agencies to get 20 percent of their electricity from renewable sources by 2020. 美國總統奧巴馬要求政府機構在2020年前,讓本部門用電的百分之二十來自于可再生能源。The renewable energy order is one of several steps the administration has recently announced to increase energy efficiency. 美國政府最近就提高能源效率宣布了幾項計劃,這項有關可再生能源使用的命令是其中之一。好的,今天我們學習的詞是 renewable, renewable, renewable...
n. 效率,功率