有人认为网络是一把双刃剑。一方面，它给人们带来前所未有的便利和灵感，但另一方面，它也会引起许多意想不到的问题。
With the development of science and technology, the Internet becomes more and more popular.You can find it nearly everywhere in our life, work and study. In other words the Internet is playing an increasingly important role in people's lives.
