帮忙个吧！T^T

帮忙个吧！T^T

There are many inventions that have changed the world so much. Here is a short introduction. For example, a digital camera was invented by Steve J. Sasson. It was invented in 1975. People use it to take photos. The telephone was invented in 1876. It was invented by Alexander Bell. It is used for communicating with each other. Telephone makes it easier to communicate when you are far away from each other. Radio was invented by Guglielmo Marconi. It was invented in 1895. When you are free, you can use it to listen to the news and music. It also makes our life more interesting.
There are more inventions that have changed the world. They are very important for us.追问谢谢了！追答嗯