Iran's nuclear issue is complicated and sensitive and obviously cannot be totally solved through one or two rounds of dialogue.

伊朗核问题复杂敏感，显然不可能通过一、两次对话就能得到全面解决。

youdao

China acted as a mediator in the nuclear stand-off, but two rounds of six-party talks have failed to resolve the issue.

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One rumor making the rounds was that Mitnick could launch nuclear missiles merely by whistling into a telephone.

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The recent problems have prompted new rounds of warnings from anti-nuclear groups.

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