From VOA Learning English, this is In The News.
The United States and Iranian officials meet in Vienna for a final round of talk on Iran's nuclear program. However, a top U.S. official says negotiators may not reach an agreement by the time limit of June 30.
U.S. Secretary of State John Kerry and Iranian Foreign Minister Mohammad Javad Zarif are planning private discussions in the Austrian capital. Others expected to take part in the talks are the "P5 plus one" nations. They are the five permanent members of the United Nations Security Council and Germany.
The U.S. official said negotiators remain "committed" to the June 30 deadline but talks may continue beyond that date. The official added that all parties in the talks want to get a good agreement. But Obama administration spokesman, Josh Earnest, said there are no immediate plans to extend the deadline beyond Tuesday.
"The negotiations continue to be difficult but there continues to be a good faith effort on both sides to try to complete them in the timetable that we've laid out."
Iran reached a framework agreement with the U.S., Russia, China, France, Britain and Germany on April 2. The agreement would permit inspections of nuclear sites and place limits on Iran's ability to enrich uranium, which can be used as fuel for a nuclear weapon. In exchange, Iran would receive relief from international sanctions. However, negotiators are still working on details of the plan.
One debated issue in negotiations is when sanctions will be lifted. Iran wants an immediate end to sanctions if an agreement is reached. The restrictions have seriously hurt the county's economy. Other countries involved in the negotiations want sanctions to be removed in steps over time. They also want a process to verify that Iran is observing the agreement.
The two sides also disagree over inspections of suspected nuclear centers. Iran's spiritual leader, Ayatollah Ali Khamenei, said Iran will not permit international inspectors to see military sites, scientists or documents. He spoke Tuesday on state television. He rejected limitations on the country's nuclear research and development lasting 10 to 12 years. And he demanded that sanctions be lifted upon signing the deal instead of in stages. In previous statements, the religious leader had expressed support for the talks.
Secretary Kerry answered the comments saying the Iranian leader's comments were not new. He said, "What matters ...is what is agreed upon within the four corners of the document, that is what is yet to be determined."
Mr. Kerry added that if Iran fails to abide by the framework agreement reached in Lausanne, Switzerland, "there will not be an agreement."
Former Ambassador James Jeffrey is one of several former officials to sign an open letter expressing concern the agreement may not be a good one. Five of those officials have served in the administration of President Obama. Mr. Jeffrey said those who signed the letter are concerned the administration will offer too many concessions. They urged tough inspections, long-term limits on nuclear research, full information on Iran's past activities and a gradual reduction in sanctions.
Negotiation between Iran and the six powers have lasted for two years. There already have been two extensions of negotiating deadlines. Mark Fitzpatrick of the International Institute for Strategic Studies said, "The comprehensive deal, if and when it is struck, needs to be clear and detailed as to what is allowed and what's not allowed."
I'm Mario Ritter.
1.timetable n. 时间表；时刻表；课程表
He tacked the timetable to the door.
2.uranium n. [化学] 铀
The fuel was enriched with uranium 235 for the nuclear reactor.
3.concession n. 让步；特许（权）；承认；退位
As a concession to his reasonable demand, the doctor allowed him to work.
医生向他的合理要求让步了， 允许他工作 。
4.inspection n. 视察，检查
Inspection is cordially invited.
1."The negotiations continue to be difficult but there continues to be a good faith effort on both sides to try to complete them in the timetable that we've laid out."
lay out 展示；安排；花钱；为…划样；提议
The flower garden was tastefully laid out.
He laid out all his savings in buying a car.
2.The U.S. official said negotiators remain "committed" to the June 30 deadline but talks may continue beyond that date.
committed to 决心从事；投入到；致力于；决心要
Groups like ours are committed to eradicating homophobia, racism and sexism.
They were committed to the eventual restoration of a traditional monarchy.
伊朗4月2日与美国、俄罗斯、中国、法国、英国和德国达成了框架协议，协议允许对核地点进行检查，并对伊朗的铀浓缩能力进行限制，这种能力可以用来制作核武器。作为交换，伊朗所受的国际制裁将会减轻 。然而，协商者仍在制定计划的细节 。
双方对嫌疑核地点的检查也存在争议，伊朗精神领袖阿亚图拉-阿里-哈梅内伊称伊朗不会允许国际检查员看到军事基地、科学家或文件。他周二在国家电视台做讲话，反对对本国的核研究和开发进行10到12年的限制 。他要求在协议签署后立即取消制裁，而不是逐步取消 。在之前的声明中，这位宗教领袖还表示支持协商 。
前大使詹姆斯·杰弗瑞和另外几名前官员在一封公开信上签名，表示担心该协议不会很好。其中有5名官员曾就职于奥巴马政府，杰弗瑞称公开信的签名者担心政府会做出太多让步 。他们要求对核研究进行严格的检查和长期的限制，充分了解伊朗过去的核活动，逐步减轻制裁 。