Since the 1950s, NASA has done a lot to further our knowledge of the moon. Probes (探测器), lunar landers and even men have been successfully sent to the moon to explore it and conduct research. But what does the future hold for NASA’s moon missions (任务)?
21世纪报社版权所有，未经书面授权，禁止转载或建立镜像。 主办单位：中国日报社 Copyright by 21st Century English Education Media All Rights Reserved 版权所有 复制必究 京ICP备13028878号-12京公网安备 11010502033664号
京公网安备 11010502033664号
