欧盟周一表示，新一轮制裁目的在于让伊朗有可能在年前重返铀浓缩计划谈判。

The European Union said on Monday that the aim of its latest sanctions was to get Iran to return to negotiations over its uranium enrichment program, possibly by the end of the year.

youdao

更甚，还可能存在一个颇受怀疑的铀浓缩计划：由于难以分辨察觉出来，甚至连美方本身都不确信是否真的存在。

Then there is the suspected uranium-enrichment project: tricky to inspect, since the Americans are not even sure where it might be.

youdao

实际上，巴西一直反对附加草案，原因是(但也可能不是)，可能会存在泄露铀浓缩计划中商业秘密的风险。

In practice, Brazil has been holding out against the Additional Protocol on the (improbable) ground that it could put at risk commercial secrets from its uranium-enrichment programme.

youdao