The North also said it had reached the final stage of a uranium enrichment program, possibly creating a second process by which it can build nuclear arms.

VOA: standard.2009.09.06

I do a program called "BRYTE", which is Brown Refugee Youth Tutoring Enrichment,

我参加的一个项目叫“BRYTE”，是布朗青年难民辅导计划的简称，

校园生活 - SpeakingMax英语口语达人

Iran says its uranium-enrichment program is designed only for electricity generating purposes, and has allowed U.N.inspectors to visit a previously secret processing facility near the city of Qom.

VOA: standard.2009.10.28

a critical meeting with Iran's nuclear negotiator on October 1 to determine if Iran is prepared to discuss an end to a uranium enrichment program believed to be weapons-related.

VOA: standard.2009.09.23

Berman says the legislation would be only one point of pressure on Iran to roll back its uranium-enrichment program, which the United States believes is aimed at producing a nuclear weapon.

VOA: standard.2009.10.28

The amendment would prevent the U.S.Export-Import Bank from entering into any deals with foreign companies that significantly contribute to Iran's refined petroleum resources, part of efforts to pressure Iran to stop its uranium enrichment program.

VOA: standard.2009.06.23

On the Iran nuclear issue, Lavrov said while Moscow opposes harsh additional U.N.sanctions against Tehran, it does support,and is applying, "robust" political pressure to get Iran to return to negotiations with the major powers on its enrichment program.

VOA: standard.2009.05.07

Iran has sent mixed signals about its response to the plan, under which much of the low-enriched uranium Iran has produced in its controversial enrichment program would be shipped abroad for processing, a step that would ease Western concerns about Iran's nuclear intentions.

VOA: standard.2009.11.09

In April,the P5+1 offered Iran a revised package of incentives for it to halt uranium enrichment and return to negotiations over its nuclear program.

VOA: standard.2009.09.11

The plan follows months of deadlock over Iran's nuclear program and the recent discovery of a previously unknown nuclear-enrichment plant near the Iranian city of Qom.

VOA: standard.2009.10.19

The P5+1 last year presented Iran with a revised offer of incentives for it to halt a uranium enrichment effort U.S.and European officials believe is weapons-related and return to negotiations on its nuclear program.

VOA: standard.2009.06.24