The nuclear deal required Iran to limit its enrichment of uranium and convert several of its nuclear facilities to other uses.

核协议要求伊朗限制生产浓缩铀，并把几处核设施转用于其它目的。

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They were also presented with thousands of documents detailing, for example, the daily operation of uranium enrichment facilities as well as the construction and dismantling of specific weapons.

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But the same facilities that are used for peaceful enrichment can be used to enrich uranium for a bomb.

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But the same facilities that are used for peaceful enrichment can be used to enrich uranium for a bomb, and inspectors say they have not been able to fully gauge Iran's intentions.

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