Energy Secretary Jennifer Granholm calls this a supply crunch rather than a gas shortage.

能源部长詹妮弗·格兰霍姆称这是供应危机，而不是汽油短缺。

A deal could free Iran to export more than 500,000 barrels of oil a day, easing the global supply crunch and making up for some of the barrels that Russia is not selling.

如果达成协议，伊朗可以每天出口50多万桶石油，缓解全球供应紧张的局面，弥补俄罗斯没有出售的部分石油。