今年5月，美国政府以协议有缺陷为由，单方面宣布退出伊核协议，并称该协议无法永久禁止伊朗生产核燃料。
In May of this year, the US government unilaterally announced its withdrawal from the Iran nuclear deal on the grounds that the agreement had deficiencies, saying that the agreement could not permanently prohibit Iran from producing nuclear fuel.