He was the source of the Soviet successes with the first artificial satellite of the Earth Sputnik-1, and the first man in space Yuri Gagarin.是什么意思_He was the source of the Soviet successes with the first artificial satellite of the Earth Sputnik-1, and the first man in space Yuri Gagarin.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句