常见例句双语例句"Efficiency isn't enough, " says Richard Dyer, aviation campaigner for Friends of the Earth. "To go on raising emissions isn't acceptable."地球之友的航空工业宣讲员理查德·戴尔表示：“仅仅提高效率是远远不够的，而继续增加排放是不能接受的。” 返回 richard dyer