句子语法分析? i believe that this nation should commit itself to achieving the goal before this decade is out of landing a man on the monn and returning him safely to the earth. 1、 为什么是 to achieving? 2、of landing a man on the monn and returning him safely to the earth 我觉得修饰的应该是 goal,求解 3、顺带翻译,谢谢查看更多