Against such a backdrop, the fact that Chinese Foreign Minister Wang Yi still came to Tokyo since he took office in 2013 has shown China's sufficient sincerity to cooperate with Japan and South Korea.

China, Japan and South Korea are neighbors and important countries in East Asia. Trilateral cooperation between them exerts great influence on peace and stability, development and prosperity in the region and the world.

With their total economy accounting for one fifth of the global economy and 70 percent of the Asian economy, the three countries have started the 10th round of negotiations on a free trade zone among them, which is expected to enhance industrial complementarity, explore potential in trade and investment and further integrate regional value chain.

However, cooperation in economy and trade should be built on the basis of mutual political trust among the three parties.

Both Tokyo and Seoul should abandon the Cold War mentality and view the peaceful rise of China as vigor to regional development. They also should avoid being the tools for some countries outside the region to undermine regional stability.

Facing the complex trilateral relations among the three neighbors, the best solution is to seek common interests while reserving differences. That is the reason why the Tokyo meeting can finally take place.

Only through maintaining the trilateral mechanism for dialogue and cooperation, can China, Japan and South Korea avoid strategic misunderstanding and make their differences controllable, so as to safeguard regional security and stability.