在关税和贸易问题上与美国总统特朗普意见相左的白宫国家经济委员会主任盖瑞·科恩上周二辞职了，请看本报周五的报道：

Gary Cohn, who resigned Tuesday as U.S. President Donald Trump’s top economic adviser, had been a standard bearer for the Wall Street ethos in an administration propelled to power by strident nationalism.

But having lost a bruising internal battle over Trump’s sudden decision recently to impose steep tariffs on steel and aluminum imports, Cohn finally threw in the towel, confirming days of speculation that he was on the way out.

报道中的throw in the towel就是“放弃、认输”，这个说法源自拳击运动，拳击手的教练往台上扔一条毛巾或者海绵表示认输，不再继续比赛，以防止运动员严重受伤。