On a spring day with flowers blooming, the shadows of war and of a new form of fatal infection hang over mankind. The book Guns, Germs, and Steel by Jared Diamond discusses the three greatest threats to our world. Today two of them are already making inroads on human civilization.
花開的春日，人類籠罩在戰爭與嚴重呼吸道疾病威脅中，《槍砲、細菌、鋼鐵》一書中說的世界三大威脅，如今有兩項同時在侵蝕著人類文明。