The engine ignition) Last month, Japan launched a lunar orbiter, the most technically complex mission to the moon since the Apollo program of the 1960s.是什么意思_The engine ignition) Last month, Japan launched a lunar orbiter, the most technically complex mission to the moon since the Apollo program of the 1960s.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句