月球: moon; selen-; seleno-; selen ...离: leave; part from; be away fr ...地球: the earth; the globe很: very; quite; awfully远: far; distant; remote远离地球: outpost远离地球2: outpost脱离地球轨道: earth-orbit escape地球-月球体系: earth-moon system地球和月球: earth and moon年火星离地球最近: mars to get closer than ever in recorded history in脱离地球引力区: earth escape从地球到月球: from the earth to the moon地球、太阳和月球: earth sun and moon很远: a long way off; widely离地: become airborne; break ground; fly off the runway; getaway; offground; unstick从地球到月球 (凡尔纳): from the earth to the moon从地球到月球 第六集: pmpavc从地球到月球 第七集: pmpavc地球-月球质量比值: earth-moon mass ratio地球是月球的49倍: the size of月球地球间的轨道: cislunsr trajectory月球绕地球运行: the moon revolves around the earth脱离地球引力场阶段: ejection stage脱离地球引力场螺旋轨道: escape spiral
