主題描述
very high quality illustration of a professor presenting a construction sketch of an airplane on screen to the audience, open space, education, warm, inspiration, friendly
教授在屏幕上向觀眾展示飛機(jī)的構(gòu)造草圖的高質(zhì)量插圖,開放空間,教育,溫暖,靈感,友好