求翻译：根据宣言，在原苏联归还日本两个岛屿前两国必须缔结和平条约，条约的签署则意味着领土争端的彻底解决。此外，宣言只是说原苏联准备归还两个岛屿，但并没有说明在什么条件下归还，什么时候归还，谁将对这些岛屿拥有主权。这正是需要俄日双方共同认真研究和解决的问题。普京还说，目前俄日关系发展不错，双边贸易额不断增长，两国坚持定期政治交流。他重申缔结和平条约符合俄日双方的利益。是什么意思？

According to the declaration, in the former Soviet Union to return to Japan two islands before the two countries to conclude a peace treaty, the signing of the treaty means that the complete resolution of the territorial dispute. In addition, the Declaration is that the former Soviet Union ready to

Based on the Declaration, in the former Soviet Union returned to Japan two island before the conclusion of a peace treaty, must be a signed treaty means the territorial disputes of the complete solution. In addition, the Declaration simply stated that the Soviet Union ready to return two islands, bu

According to the manifesto, returns in front of the Japanese two islands in the former U.S.S.R both countries to have to conclude the peace treaty, the treaty signature meant territory conflict thorough settlement.In addition, the manifesto only is said former U.S.S.R prepares to return two islands,

According to the Declaration, in the former Soviet Union returned to Japan before the two islands must be the conclusion of a peace treaty, the signing of the Treaty means that solve a territorial dispute. In addition, the Declaration has only said that the former Soviet Union prepared to return two

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