John quincy adams has been called " one of the greatest secretaries of state " in the history of the united states and is often credited with " the greatest diplomatic victory ever won by a single individual in the history of the u . s . " do you know what that victory was 约翰昆西亚当斯被誉为美国史上最伟大的国务卿之一，也是美国史上创造最伟大外交胜利的个人，你知道他曾经创造哪些外交上为人称道的胜利吗？
