chief，principal，main，major，leading，capital，foremost，primary
这些形容词都含有“首要的，主要的”之意。
chief指人时，表同类中职位最高，权力最大；指物时，表同类中最重要，价值最高。
principal用于人时，指地位优于其他人；用于物时，指该物在大小、重要性等方面优于他物。
main通常只用于物。指在一定范围内，某物的重要性、体积或力量等超过其它物。
major指同其他人或其它物、问题等相比较，显得更加重要和突出。
leading侧重指具有影响力或凝聚力。从而有主导和引导的作用。
capital着重指因重要性、意义、优越或重大而名列同类之首。
foremost侧重指在行进或发展过程中居首位。
primary通常不用于人。用于物时，指在重要性方面占第一位。
New York holds its primary election on Tuesday.
纽约州将在星期二举行预选。
柯林斯例句
Although his formal education stopped after primary school, he was an avid reader.
尽管小学毕业后就再没有受过正规的教育，他却十分爱读书。
——柯林斯例句
The company has targeted adults as its primary customers.
这家公司将成年人作为其主要顾客。
柯林斯例句
primary and secondary education
中、小学教育
——《牛津高阶英汉双解词典》
Britain did not introduce compulsory primary education until 1880.
直到1880年，英国才开始实行初等义务教育。
——柯林斯例句
It is nearly always women who are the primary care givers.
从事初级保健护理工作的几乎都是女性。
柯林斯例句
It is not the primary tumour that kills, but secondary growths elsewhere in the body.
原发性肿瘤并不会置人于死地，致命的是身体其他部位的继发肿瘤。
柯林斯例句
They have been barred from primary bidding for clients.
他们被禁止对客户进行最初的投标。
——柯林斯例句
I don't think young people's primary aim in life is to get drunk.
我觉得年轻人生活的主要目标并不是一醉方休。
——柯林斯例句
Computers are now commonplace in primary classrooms.
计算机如今在小学教室里很普遍。
——《牛津高阶英汉双解词典》
The family continues to be the primary source of care and comfort for people as they grow older.
随着年龄的增长，家庭仍然是人们获得关爱和安慰的主要源泉。
——柯林斯例句
People have no letters at the primary stage of civilization.
在文明的初期,人类是没有文字的.
——《简明英汉词典》
A distinction should be made between the primary and secondary tasks.
要区别主要的和次要的任务.
——《现代汉英综合大词典》
The primary task of the chair is to ensure the meeting runs smoothly.
主席的首要任务是确保会议顺利进行.
——《简明英汉词典》
This is the primary impetus behind the economic recovery.
这是促使经济复苏的主要动力.
《简明英汉词典》
His misunderstanding of language was the primary cause of his other problems.
他对语言的误解是引起其他问题的主要原因。
——柯林斯例句
First of all we should make primary education universal.
首先我们应普及初等教育.
《现代汉英综合大词典》
In Sierra Leone, English is used as the medium of instruction for all primary education.
在塞拉利昂，基础教育阶段全部用英语授课。
柯林斯例句
It comes in bright primary colours that kids will love.
它用的都是孩子们喜欢的亮丽原色。
柯林斯例句
The primary cause of Tom's failure is his laziness.
汤姆失败的根本原因是懒惰.
《简明英汉词典》
Truanting is a small but growing problem in primary schools.
逃学是小学里一个虽小却日趋严重的问题。
柯林斯例句
That's the primary reason the company's share price has held up so well.
这是公司股票价格一直居高不下的主要原因。
柯林斯例句
Mrs Steele was head of Didcot's C of E primary school.
斯蒂尔夫人曾是英国迪德科特圣公会小学的校长。
柯林斯例句
The government has now pledged £170m over the next six years for improving primary care.
为了改善初级卫生保健工作，政府已承诺在未来6年内拨款1.7亿英镑。
柯林斯例句
The voters are pretty sick of such a surfeit of primary sloganeering.
选民们对于初选时没完没了地空喊口号的现象感到发腻了.
《现代汉英综合大词典》
Intake in state primary schools is down by 10 %.
公立小学入学人数下降了10%.
《简明英汉词典》
The primary aim of this course is to improve your spoken English.
这门课的主要目的是提高英语会话能力。
《牛津高阶英汉双解词典》
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