C475 V-shaped Dual-cylinder Gasoline Engine

It's raining in July.

Leonardo opened the door and took a deep breath.

He had not come out of his inventor house for several months. This was one of the houses in Lorenzo's manor. It only had two stories and six or seven rooms. If it weren't for the servants of the Medici family delivering food, water, clothes, and cleaning the rooms on time, Leonardo might have died inside.

However