Itwasmylifelongmistaketofallinlovewithyou.
wrong是形容词.
fault多指技术原因的错误.
AccordingtoOxfordAdvancedLearner'sDictionary,
mistake、error、blunder、fault、defect都用以指没有做对或做得不妥的事物.Mistakeisthemostgeneral,usedofeverydaysituations.
fault侧重於造成错误的个人责任:Thechildbrokethewindow,butitwashisparents'faultforlettinghimplayfootballindoors.孩子把窗户打破了,但是让他在屋里踢足球是他父母的过错.Faultcanalsoindicateanimperfectioninapersonorthing*fault还可指人或物的缺点:Hehasmanyfaults,butvanityisnotoneofthem.他有很多缺点,但并没有虚荣心.*anelectricalfault电路的故障.