The Chinese language is the language of the Han people, and the common language of modern Han people—Putonghua—is China’s universal and official language. Simplified Chinese characters are China’s universal and official written language. Due to historical and geographical factors, a variety of dialects exist in the Chinese language. The dialects are regionally different. The major difference among them lies in pronunciation, with minor differences in vocabulary and grammar. In spite of this, the written language is unified. As the most widely used language in the world, Chinese is becoming more and more influential and it also plays an important role in international communication.