沙特生产政策显然是去年油价腰斩背后的原因，而7月6日开始的新一轮暴跌就发生在取消伊朗国际制裁的协议达成几天后。
While Saudi production policies were clearly behind last year’s halving of the oil price, the latest plunge began on July 6, within days of the deal to lift international sanctions against Iran.