但如今，在计划进行了一半时，我们却看不见实实在在的进展，上个月的谈判在可接受的伊朗铀浓缩水平和阿拉克（Arak）重水反应堆的未来等关键问题的讨论上没有取得任何成果。
But now, at the plan’s halfway point, there has been little concrete progress, with last month’s negotiations producing no headway on two key issues being discussed: the acceptable level for uranium enrichment in Iran and the future of the heavy-water reactor at Arak.