NASA's Electric Airplance
#. NASA's Electric Airplance NASA is the space agency of the United Sates. It usually makes rockets and rovers for outer space. Sometimes, NASA also builds things for Earth. They are called "x-planes," or experimental planes. This way, NASA tries out new ideas for aircrafts. Recently, NASA showed its latest x-plane. It's name X-57 Maxwell. It's an electric airplane. This plane has huge wings. It..
Cake : toddler/왕초보 영어뉴스
2020. 5. 17. 18:38
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