He is a prefessor at the University of North Carolina Ca***.And at age fifty, he learnt (learned) to fly .He flie s motor glider and small airplanes.是什么意思_He is a prefessor at the University of North Carolina Ca***.And at age fifty, he learnt (learned) to fly .He flie s motor glider and small airplanes.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句