奥巴马应该宣布美国致力于政治解决叙利亚问题，他的政府将竭尽全力在下周和平会议及后续行动中找到这样的解决方案。
Obama should announce that the US is committed to a political solution in Syria, and that his government will do whatever it can to bring about such a solution through next week’s peace conference and follow-up action.