但即便美国人似乎不愿为又一次没有出路的国外冒险投资数十亿美元，伊朗领导人却越来越深地陷入破坏该国经济的国际制裁的包围。
But, if Americans seem unlikely to be willing to invest billions of dollars in another dead-end foreign adventure, Iran’s leaders, for their part, are increasingly hemmed in by international sanctions, which are beginning to wreak havoc on the country’s economy.