swear /swɛə/ vt. & vi. (swore /swɔ:/, sworn /swɔ:n/) 1.诅咒，咒骂： swear sb. away 把某人骂走； swear about 咒骂(某事); swear at… 咒骂(某人)  2.宣誓，发誓（跟名词/代词、不定式和从句）： He swore eternal love to her. 他发誓永远爱她。You have sworn to be faithful to me. 你已发誓要对我忠诚。I swear that I will tell you everything some day. 我保证有一天会告诉你一切。3. 用于短语动词 swear by 确信无疑：My dad swears by these vitamin pills.我爹对这些维生素片确信无疑。swear sb. in 使宣誓：Mr Stein was sworn in as City Council president yesterday. 昨天斯坦先生宣誓就职市长职务。swear off 戒（毒、酒等）：She swore off alcohol and cigarettes after her heart attack last year.去年她遭遇心脏病发作后就下决心戒酒戒烟了。