JohnGlennthefirstAme的精選

問題詳情：JohnGlenn,thefirstAmericanastronauttoorbittheearth,learnedhowtoflywhileattendingcollegein1939.Duringthedayhestudiedchemistry,andinhissparetime,hetookflyinglessons.Shortlyafterthe1941attackonPe...