principal

英 [ˈprɪnsəpl]

美 [ˈprɪnsəpl]

adj. 最重要的; 主要的
n. 大学校长; 学院院长; 本金; 资本; 主要演员; 主角

复数：principals　

Collins.3 / BNC.2225 / COCA.3124

牛津词典

adj.

noun

大学校长；学院院长
the person who is in charge of a college or a university
1. Principal Ray Smith
  雷∙史密斯校长
大学校长；学院院长
the person who is in charge of a college or a university
1. Principal Ray Smith
  雷∙史密斯校长
本金；资本
an amount of money that you lend to sb or invest to earn interest
主要演员；主角
the person who has the most important part in a play, an opera , etc.
（尤指商务或法律事务的）当事人，委托人
a person that you are representing, especially in business or law

ADJ 首要的；最主要的；最重要的
Principalmeans first in order of importance.
1. The principal reason for my change of mind is this.
  这是我改变主意的最主要原因。
2. ...the country's principal source of foreign exchange earnings...
  这个国家最主要的外汇收入来源
3. Their principal concern is bound to be that of winning the next general election.
  他们最关心的问题肯定是赢得下一次大选。
N-COUNT （中小学）校长；（英国）大学校长，学院院长
Theprincipalof a school, or in Britain theprincipalof a college, is the person in charge of the school or college.
1. Donald King is the principal of Dartmouth High School.
  唐纳德·金是达特茅斯中学的校长。

noun

the major party to a financial transaction at a stock exchange
Synonym:dealer
the educator who has executive authority for a school
1. she sent unruly pupils to see the principal
Synonym:school principalhead teacherhead
(criminal law) any person involved in a criminal offense, regardless of whether the person profits from such involvement
an actor who plays a principal role
Synonym:starlead
capital as contrasted with the income derived from it
Synonym:corpusprincipal sum
the original amount of a debt on which interest is calculated

They were the principal shareholders in a bank riddled with corruption
他们是一家腐败成风的银行的主要股东。
The principal keeps all our school reports on file.
校长把我校的所有报告都存档保存.
City's principal marksman was Joe Harvey who scored seventeen goals.
市队的头号射手是打进17粒进球的乔·哈维。
Stoppard had to recast four of the principal roles.
斯托帕德只好更换4个主要角色的人选。
Ever since World War the United States has been Japan's principal trade partner.
二次世界大战以来，美国一直是日本的主要贸易伙伴。
A country's principal resource is its brainpower.
一个国家的首要资源是其人才资源。
Thus the directions that emerge for extremizing the normal stress are the directions corresponding to the principal stresses.
因此，产生最大正应力的方向就是相应于主应力的方向。
Once this principal contradiction is grasped, all problems can be readily solved.
抓住了这个主要矛盾，一切问题就迎刃而解了。
The principal adrenocortical products are aldosterone, cortisol and dehydroepiandrosterone sulphate.
肾上腺皮质的主要产物为醛固酮、皮质醇和脱氢异雄酮硫酸盐。
The principal reason for my change of mind is this.
这是我改变主意的最主要原因。