1. Russia
2. North Korea
3. Mongolia
4. South Korea (across the sea)
5. Japan (across the sea)
6. Ryukyu (originally an independent country, occupied by the Japanese a hundred years ago, and the United States handed over power to Japan after World War II)
7. The United States (it should not be regarded as China's neighbor across the Pacific Ocean, but the shameless United States considers itself a neighbor of any country in the world, and they think that every region in the world is related to their interests).
8. Philippines (across the sea)
9. Brunei (across the sea)
10. Malaysia (across the sea)
1 1. Singapore (across the sea)
12. Indonesia (across the sea)
13. Thailand
14. Vietnam
15. Cambodia (same region, close relationship)
16. Laos
17. Myanmar (Southeast Asian countries)
Nepal
19. Bhutan
20. Sikkim (1975, annexed by India)
2 1. India
22.pakistan
23. Kashmir (disputed land between India and Pakistan, bordering China)
Afghanistan
25. Hashakstan
26. Tajikistan
Kyrgyzstan
28. Australia (originally, the two countries did not belong to the same continent, but with ulterior motives, it stubbornly squeezed in as a neighbor of China)
China has the largest number of neighboring countries in the world, so there are many troubles.