1. 较重要的;较重大的;主要的
You use major when you want to describe something that is more important, serious, or significant than other things in a group or situation.
e.g. The major factor in the decision to stay or to leave was usually professional...
职业上的考虑往往是决定去留的主要因素。
e.g. Drug abuse has long been a major problem for the authorities there...
长久以来，吸毒一直是那里的当局面临的一个大难题。
2. (英国)陆军(或海军陆战队)少校;(美国)陆军(或空军、海军陆战队)少校
A major is an officer who is one rank above captain in the British army or the United States army, air force, or marines.
e.g. I was a major in the war, you know.
你知道，战争期间我是一名陆军少校。
e.g. ...Major Alan Bulman.
艾伦·布尔曼少校
3. (美国大学中的)主修课程，专业
At a university or college in the United States, a student's major is the main subject that they are studying.
major
e.g. English majors would be asked to explore the roots of language.
英语专业的学生会被要求探究语言的根源。
4. (美国大学中)主修…的学生，…专业的学生
At a university or college in the United States, if a student is, for example, a geology major, geology is the main subject they are studying.
e.g. She was named the outstanding undergraduate history major at the University of Oklahoma.
她被评选为俄克拉何马大学历史专业的优等生。
5. (在美国大学)主修，专攻
If a student at a university or college in the United States majors in a particular subject, that subject is the main one they study.
e.g. He majored in finance at Claremont Men's College in California.
他在加利福尼亚州的克莱尔蒙特男子学院主修金融专业。
6. (音乐)大调的，大音阶的
In music, a major scale is one in which the third note is two tones higher than the first.
e.g. ...Mozart's Symphony No 35 in D Major.
莫扎特D大调第35号交响曲
7. 大型公司;重要企业
A major is a large or important company.
major是什么意思
e.g. Oil majors need not fear being unable to sell their crude.
大型石油公司无需担心原油销售不出去。
8. 职业体育总会;(尤指美国)职业棒球联合总会，职业棒球大联盟
The majors are groups of professional sports teams that compete against each other, especially in American baseball.
e.g. I knew what I could do in the minor leagues, I just wanted a chance to prove myself in the majors.
我知道自己在职业棒球小联合会中实力如何，我只是想有个机会能在职业棒球大联盟中证明一下自己。
9. 大型体育比赛;(尤指高尔夫球或网球)大赛
A major is an important sporting competition, especially in golf or tennis.
e.g. Sarazen became the first golfer to win all four majors.
萨拉岑成为了首位高尔夫四大满贯赛冠军。