This man is nervous. He is sweating a lot. I don't know if he is nervous about the bulldog behind him, or if he is just nervous about the date he is going to next? 紧张 之一 顶部有 顶帽男子是中枢神经
A diagram of the human intestines. 'Figura de Situ Viscerum' From Magnus Hundt's 'Antropologium de Hominis Dignitate, Natura et Proprietatibus', Leipzig, 1501. (Photo by Hulton Archive/Getty Images) 人类肺癌 白色背景 解剖 Figura De Situ Viscerum