英语演讲：The Space Shuttle "Challenger" Tragedy Address
2020-10-08
RonaldReagan:TheSpaceShuttle"Challenger"TragedyAddress<?xml:namespaceprefix=ons="urn:schemas-microsoft-com:office:office"/>LadiesandGentlemen,I'dplannedtospeaktoyoutonighttoreportonthestateofthe<...