Instead, it should do more to find effective ways to resume dialogue and negotiations, Cui saidHours after the Democratic People's Republic of Korea launched another missile over Japan into the Pacific Ocean on Friday, Chinese Ambassador to the US Cui Tiankai said Washington "should be doing much more than now", so that there's real, effective international cooperation on the Korean Peninsula issueE世博平台esballWhen asked about the oil cuts, Ambassador Cui told reporters, "We are fully prepared to implement all the Security Council resolutions－no more, no lessChina responded by saying that it has done its best, and the initiators of a problem should resolve it, said Foreign Ministry spokeswoman Hua Chunying"The resolution should be implemented comprehensivelyE世博平台esballHowever, the crisis on the Korean Peninsula has spilled over and endangered regional security and stability, as well as relations between other countries