On the right, front to back, are Commander Scott Altman and Mission Specialists Megan McArthur, Andrew Feustel and Mike Massimino.是什么意思_On the right, front to back, are Commander Scott Altman and Mission Specialists Megan McArthur, Andrew Feustel and Mike Massimino.在线翻译_英语_读音_用法_例句