What are the slogans used to promote Mandarin? (more than 20 words)

Promote Mandarin slogans:

1. Mandarin goes hand in hand with quality, image and civilization.

2. Promote Mandarin and make the world one family.

3. Learning to speak Mandarin well will benefit the country, the people and everyone.

4. Learn to speak Mandarin well and make friends all over the world.

5. I am proud that I am Chinese; I am proud that I speak Mandarin.

6. Establish awareness of language standards and improve the cultural quality of the Chinese nation.

7. Standardize social vocabulary and create a national civilized city.

8. Everyone learns to speak Mandarin and strives to be a civilized person.