新概念英语第四册Lesson35课堂笔记
L35ThePegasusBookofInventorsManystrangenewmeansoftransporthavebeendevelopedinourcentury,thestrangestofthembeingperhapsthehovercraft.In1953,aformerelectronicsengineerinhisfifties,ChristopherCockerell,w...
L35ThePegasusBookofInventorsManystrangenewmeansoftransporthavebeendevelopedinourcentury,thestrangestofthembeingperhapsthehovercraft.In1953,aformerelectronicsengineerinhisfifties,ChristopherCockerell,w...