One of the airmen engaged in this pioneer service was the famous Gustav Hamel, flying a Beriot monoplane, and t remember going out one afternoon to see him start off with one of the bags of mail.是什么意思_One of the airmen engaged in this pioneer service was the famous Gustav Hamel, flying a Beriot monoplane, and t remember going out one afternoon to see him start off with one of the bags of mail.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句