Plane uses sun's power to fly
本文作者： 21ST
全球第一架可昼夜飞行的太阳能飞机试飞成功。词数 227 建议阅读时间 7分钟EARLIER this month, a solar-powered (太阳能动力的) plane took to the skies for the first time. It had passed an important test on the way to travel around the world. |  |
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