2. Speaking Mandarin well is convenient for you, me and him.
3. Society is a family, and everyone speaks Mandarin.
4. Speak Mandarin well and make friends all over the world.
5, a mandarin, know you know I know him; Every word of Putonghua, the true feelings spread to thousands of families.
6. Civil servants should take the lead in promoting Putonghua.
7. In a word, Mandarin paints China in a thousand words.
8. Mandarin is accompanied by quality, image partner and politeness.
9. Promote Mandarin and communicate with you, me and him.
10, everyone speaks Mandarin, and everyone is the best; Love to speak Mandarin, everyone praises him.
1 1. Vigorously promote Putonghua and enhance the cohesion of the Chinese nation.
12, let's speak Mandarin and care for China.
13, Mandarin, Voice of China, China's feelings.