As concerns over the environmental cost of flying continue to mount, green propulsion systems can offer an ethical alternative.
원문출처 : https://www.cnn.com/travel/article/first-flight-largest-electric-aircraft-scli-intl/index.html
원문출처 : https://www.cnn.com/travel/article/first-flight-largest-electric-aircraft-scli-intl/index.html