major1/ˋmedʒɚ; ˈmeIdʒə/adj 1 very large or important [→ minor] 大的﹔重要的﹔主要的: Traffic is a major problem. 交通是个大问题。He played a major part in the negotiations. 他在谈判中起了重要作用。2 a major key is one of the two main sets of musical notes [→ minor]〔音乐〕大音阶的﹐大调的: a symphony in A major A 大调交响乐
major2n [C] 1 also 又作 Major an officer of middle rank in the army〔陆军的〕少校2 AmE 【美】a) the main subject that you study at college or university〔大学的〕主修科目﹐专业b) English/history etc major a student at college or university whose main subject is English, history etc 主修英语/历史等的学生
major3v major in sthphr v AmE to study something as your main subject at college or university [→ minor] 【美】〔在大学〕主修〔某个科目〕