美国考虑对伊朗进行额外制裁
The US secretary of state has said the US is considering imposing additional unilateral sanctions against Iran over its nuclear programme.
美国国务卿宣称，针对伊朗核计划，美国正在考虑对伊朗实行额外的单边制裁措施。
Mrs Clinton said the Obama administration was considering extra direct sanctions against Iran
Six world powers are negotiating with Iran over its nuclear programme, which it insists is for peaceful purposes.
The two sides are due to meet in Istanbul on Friday.
Mrs Clinton denied that China was undermining（暗中破坏） efforts to stop activity that the powers suspect is aimed at developing nuclear weapons capability.
'Having an impact'
"The Israelis just said about a week or so ago that they see a slowdown in the Iranian programme. We believe that sanctions have had an impact."
She said, however, that the US was pushing Beijing to ensure sanctions were uniformly applied.
"We think that there are some entities within China that we have brought to the attention of the Chinese leadership that are still not as, shall we say, in compliance as we would like them to be and we are pushing very hard on that," she said.
"We may be proposing more unilateral（单边的） sanctions," she added.
The six powers who will hold discussions with Iran in the Turkish city of Istanbul are the US, Britain, France, Russia, China and Germany.
The talks will be chaired by European Union foreign policy chief Catherine Ashton.