2. Speak Mandarin and let the voice of * resound around the world. 3, Mandarin, every sentence is in the ear; Standardize the word, line in the purpose. 4. Putonghua-makes life more exciting and society warmer. 5, Putonghua-campus language, standardized use of words-campus publicity. 6. Speak Mandarin, write standard words and be a civilized person. 7. Mandarin is a tool for communication, and standardized writing is a symbol of civilization. 8. Speak Mandarin well and make friends all over the world. 9. The four seas have the same sound and become one. 10, realize smooth communication and build a harmonious society. 1 1, the same family, pay attention to your language; Under the blue sky, please write standard words. 12, standardize the use of words in social language, build a harmonious language life 13, everyone learns to speak Mandarin and strive to be a civilized person. 14. It is the duty of every citizen to speak Mandarin and write standard words. 15, you and I both speak Mandarin, and you and I both write standard words, which show not only you and me, but our city.