Our life is made more convenient because of the invention of computers.
Computer provides people with different sorts of entertainment such as listening to music and watching films.
It's said that radiation of the computer screen is harmful to our health.
Many young people indulge themselves in surfing on the internet and neglect their studies.
Pregnant women should not sit in front of a computer for too long.
I'm a computer novice.
For me, computer is a means of study and entertainment.
Computer viruses can cause a lot of damage.
Many young people are obsessed with playing computer games and neglect their studies.
Computer can be a two-edged sword.
Computer is a problem while it brings convenience to people.
Computer has received more and more social attention from all walks of life.