Today, technology plays an important role in our daily life. It brings about many advantages. First, it makes our life more convenient. For example, in communication, technology with several brilliant inventions of social networks, mobile devices has helped keeping in touch among people much easier than ever before. Second, technology has also increased the productivity of almost every industry in the world. Robotics are used widely in production in replacement of manual workforce. Moreover, it is also applied in other field such argricultural and service sector. In short, it is hard for people to live without technology nowadays.