Emma's daughter Kendall becomes engaged, but Emma is concerned as Kendall and her fiance have Down Syndrome and Emma worries she's not ready to take this step.。经过多年艰苦卓绝的探索,终于建成嫦娥一号卫星工程测控系统VLBI测轨分系统,并圆满完成嫦娥一号卫星的精密测定轨任务,这是国际上首次将VLBI技术应用于探月卫星奔月轨道段和在轨测试段的准实时轨道测量