The acceptable result would have been an agreement that froze production at already near record levels, with an accord that Iran would join in once it had reached its pre-sanctions level of exports.

一个能让人接受的结果是达成协议，把产量冻结在已经接近历史最高位的水平，同时允许伊朗在恢复到制裁前的出口水平后再参与冻产。

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About 20 birds have already died of hunger after the Caspian Sea froze over, local government spokesman Arslan Dydymov told the Associated Press.

BBC: Trapped Dalmatian pelicans hand-fed in frozen Caspian Sea