Thismissileisdesignedsothatonce_____nothingcanbedonetoretrieveit.
A
暂无解析
_____enoughtimeandmoney,theresearcherswouldhavebeenabletodiscovermoreinthisfield.
_____regulartraininginnursing,shecouldhardlycopewiththeworkatfirst.
Evenifhisletter()tomorrow,it()toolatetodoanything.