spaceflight的精選

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用“manned spaceflight”造句大全，manned spaceflight造句

用“manned spaceflight”造句大全，manned spaceflight造句

2016-12-19
-ToestablishChina'sownmannedspaceflightsystemandcarryoutmannedspaceflightscientificresearchandtechnologicalexperimentsonacertainscale;andChinahasselected2femalepreparatoryastronautsforthefirsttimesin...