reveal: suggests an unveiling of what is not clear to human vision and may apply to a supernatural or inspired revelation: the belief that divine will is ~ed in the Bible; or a simple disclosure: an act that ~ed his true nature.     (自释，自己解释自己) (veil面纱头巾掩盖a thin transparent material worn by women to protect or hide face，如a bridal veil新娘的面纱)   (unveil揭开油画雕塑牌匾等上的覆盖物、引申为公布推出，如a ceremony to unveil a monument to the victims死难者纪念碑揭幕仪式，Mr. Werner unveiled his new strategy this week本周公布新策略，they will unveil new flagship smartphones at the show他们将在展览会上推出新款旗舰手机）


discover: implies an uncovering of matters kept secret and not previously known: a step-by-step comparison that ~ed a clear case of plagiarism.   （cover覆盖物，uncover即揭开覆盖物，还表示发现，因此词意比discover广，如auditors had uncovered evidence of fraud审计人员发现了欺诈证据，此时uncover是discover的意思，词根un表示否定"not"，词根dis表示离开"away"）


disclose: may also imply a discovering but more often suggests an imparting of information previously kept secret: candidates must ~ their financial assets.   impart告知传授=tell


divulge: implies a disclosure involving some impropriety or breach of confidence: refused to ~ confidential information.


tell: implies an imparting of necessary or useful information: never ~ her that he was married.  


betray: implies a divulging that represents a breach of faith or an involuntary or unconscious disclosure: a blush that ~ed her embarrassment.   breach of faith背信 （voluntary自愿的implies freedom from compulsion，如voluntary enlistment in the armed services自愿参军，involuntary即不由自主无意识的=unconscious）


reveal揭示: 揭开难以看清的，既可指神启也可指普通揭示，discover发现: 揭开之前保密或不为人知的，disclose透露: 告知此前保密的信息，divulge泄露: 表示不当或背信地透露，tell告知: 仅指告知信息，betray背叛暴露: 表示背信泄露，或无意识暴露


记忆方法: 1) 首字母RDDDTB想成3D RoBoT即3D机器人<==揭示未知

        2) 揭示的意思是使人知道原本隐藏的东西mean to make known what has been or should be concealed.首字母RDDDTB想成3D RoBoT即3D机器人<==揭示未知