A Russian mail delivery drone crashed into a wall shortly after taking off on its first test flight in Siberia.
원문출처 : https://www.cnn.com/videos/cnnmoney/2018/04/03/russian-postal-mail-delivery-drone-crash-cnnmoney-orig.cnnmoney
원문출처 : https://www.cnn.com/videos/cnnmoney/2018/04/03/russian-postal-mail-delivery-drone-crash-cnnmoney-orig.cnnmoney