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By Mike O'Sullivan Los Angeles 20 December 2006 The Planetary Society, an organization that promotes space exploration, has teamed up with NASA to send a digital greeting card to Mars aboard the Phoenix lander, an unmanned space probe, on a mission
发表于:2019-01-12 / 阅读(114) / 评论(0)
2006年VOA标准英语（十二月）
2006年VOA标准英语（十二月）