✔ 最佳答案
Using of computer is now part of our daily life. It helps us do many things more easily, but at the same time there are drawbacks about it.
Some people sit in front of the computer all day long doing all sorts of things on the internet. It is tiring for the eyes while maintaining the same posture all day long is very bad for health. The circulation of indecent materials is another drawback of the internet.
The great thing about the internet that you are given access to information about virtually anything in the world without leaving your own town. E-mail is an effective means of communcation for its real-time exchange of messages and low cost compared with posting a letter with a stamp.
Computer does bring us a lot of convenience. But we must use it properly while not letting the way we use it affect our health.