单词：SFO
abbr. 旧金山（San Francisco）；太空飞行操作（Space Flight Operations）；严重欺诈办公室（Serious Fraud Office）
单词：SFO 相关文章
Visionary Ideas Could Transform Future NASA Missions NASA, the U.S. space agency, has awarded $3 million in grants for 30 proposals which explore new ideas for Americas next generation space program. The proposals reflect wide-ranging visions of new
发表于:2018-12-16 / 阅读(59) / 评论(0)
VOA标准英语2011年(八月)
VOA标准英语2011年(八月)