英语翻译
Invention of glasses
What is the most important invention?It is the telephone that lets us talk to people from all over the world?It is the car that lets us travel at great speeds to meet others?An Italian write says the most important invention might be glasses
Modern glasses were invented around 1000 years ago.Before glasses,writers,scientists or teachers who could not see probably had to memorize everything.After about ten years of poor eyesight,they could not remember well enough and could not work.Glasses mean that people can work into their old age.People who want to remember some information can write it down and read it.So glasses are one of the world's greatest inventions.