Kneeling for an English translation of Chinese, accurate grammar, no online translation, thank you.

As an indispensable part of human life, mobile phones have developed rapidly in recent years. A few years ago, when tablet Nokia was popular in the world market, most of us thought that mobile phones could only be used for making calls and sending messages. This situation did not change until the arrival of the iphone. Began to use a wide touch screen, beautiful appearance and convenient operation. Since then, it has also promoted the development of other mobile phones, such as Android system and windows phone. In this sense, Jobs realized his dream of changing the world.