介绍莱特兄弟发明的英文作文80字

Men always wanted to fly.For hundreds of years they watched birds and wished that they could fly,too.
At first they made wings like birds'.Then they jumped off high buildings ang tried to fly,but they all failed.They crashed to the groung.Then two brothers tried another way.They built a balloon.It was made of thin cloth and paper.They lit a fire beneath it.It went up into the air and reached a height of 1,800 meters.
A few months later the brothers sent up another balloon with a sheep,a duck and hen in a basket under it.The balloon traveled to a place two and a half kilometers away.In October 1783 aman went up with a balloon,but it didn't rise very high.A month later two men went up in a balloon full of hot air.The balloon rose to a height of900 meters and traveled for 9 kilometers.Then it came gently back to the groung.Men had traveled though the air fo