问题描述：
帮忙分析一下这个句子的成分the door remains open to diplomacy should iran choose to walk through it
the door remains open to diplomacy should iran choose to walk through it
这是奥巴马的原话 应该没有语法错误
the door remains open to diplomacy should iran choose to walk through it
这是奥巴马的原话 应该没有语法错误
问题解答：
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