The medical aid group Doctors Without Borders says 33 people are still missing following the U.S. airstrike on a hospital in Kunduz, Afghanistan. Twenty-two people were killed in the strike which U-S officials say was a mistake. _____________________________________________________________ 医疗救援机构"无国界医生"称,美国对阿富汗昆都士一家医院的空袭造成33人失踪,22人丧生.美国官方表示此次空袭是一次误袭. ___________________________________________________________