How did the US and DPRK respond to direct dialogue or multi-lateral dialogue?
美朝对进行直接对话或多边对话有何反应？
2
The cooperation in environment between China and Northeast Asian countries involves many aspects, with both bilateral cooperation and multi-lateral cooperation.
中国—东北亚国家之间的环境合作包括众多方面，既有双边合作，又有多边合作。
3
Agricultural negotiation is the core of the new round of multi-lateral trade negotiation and the focus of the conflict between developing and developed countries.