It is important that the United States (ideally, joined by other countries) let Iran know that any action to put itself in a position to field nuclear weapons after 15 years, though not explicitly precluded by the accord, will not be tolerated. Harsh sanctions should be reintroduced at the first sign that Iran is preparing a post-JCPOA breakout; this, too, is not precluded by the accord.
很重要的一点是美国（最好与其他国家联手）让伊朗明白，任何表明它意欲在15年后染指核武器的举动——尽管没有在协议中明文禁止——都将是不可容忍的。只要伊朗表现出准备在JCPOA到期后取得突破的信号，就应该对其实施严厉制裁；这一点也没有被协议排除。