小蝌蚪

　　One of the greatest artists of all time, the legacy of Leonardo daVinci (1452-1519) includes some of the most well-known paintings ever made. But daVinci’s talent exceeded far beyond painting – he was also a successful architect and engineer, and his drawings of military weapons have been highly regarded and studied for nearly 500 years. 　　These drawings capture exceptionally eng... (展开全部)