它从来没有披露过这第二个铀浓缩工厂的存在。

It never divulged the existence of this second one.

youdao

这就像伊朗的主要浓缩工厂，几乎是半个五角大楼的面积。

That, like Iran’s main enrichment plant, is roughly half the size of the Pentagon.

youdao

但是据推测还有更多需要检查的地方，包括铀浓缩工厂。

But there is presumably much more to inspect, including facilities for enriching uranium.

youdao