Word · Frequency #2098
Secondary
中学；中等学校
a secondary school
- 1.
Any flight feather attached to the ulna (forearm) of a bird.
附着在鸟类尺骨(前臂)的飞羽
- 2.
the defensive football players who line up behind the linemen
美式足球中列队于锋线后方的防守球员
- 3.
A radar return generated by the response of an aircraft's transponder to an interrogation signal broadcast by a radar installation, containing additional encoded identification and situational data not available from a simple primary return.
由飞机应答器对雷达装置广播的询问信号的响应产生的雷达回波,包含简单初级回波无法提供的额外编码识别和情境数据
- 4.
coil such that current is induced in it by passing a current through the primary coil
次级线圈,通过初级线圈通电感应产生电流
- 5.
The second stage of a multistage thermonuclear weapon, which generates a fusion explosion when imploded as an indirect result of the fission explosion of the primary, and which, in a few extremely large weapons, itself implodes a fusion tertiary.
多级热核武器的第二阶段,当初级裂变爆炸间接引发时产生聚变爆炸,在一些极大武器中,它本身会引发聚变的第三阶段
- 6.
An act of issuing more stock by an already publicly traded corporation.
已上市公司再次发行股票的行为
- 7.
An inductive coil or loop that is magnetically powered by a primary in a transformer or similar.
在变压器或类似装置中由初级磁力驱动的感应线圈或回路
- 8.
One who occupies a subordinate or auxiliary place; a delegate deputy.
占据次要或辅助位置的人；代表副手
- 9.
A secondary circle.
次级圆
- 10.
A satellite.
卫星
- 11.
A secondary school.
中学
- 12.
Anything secondary or of lesser importance.
任何次要或不太重要的事物
次要事物；次要之事；次级线圈；副线圈；防守后卫组；增发股票；二次发行；次级飞羽
In use
The coach told the secondary to watch for deep passes.
A current in the primary coil induces a voltage in the secondary.
The team's secondaries made three interceptions in the first half.
Connections
Collocations
- defensive secondary
- 防守后场（美式足球）
- The defensive secondary struggled against deep passes.防守后场在面对长传时表现不佳。
- transformer secondary
- 变压器次级线圈
- Connect the load to the transformer secondary.将负载连接到变压器次级线圈。
- primary and secondary
- 初级线圈和次级线圈
- The primary and secondary of the transformer are wound on the same core.变压器的初级线圈和次级线圈绕在同一个铁芯上。
- primaries and secondaries
- 初级飞羽和次级飞羽
- In most bird species, the primaries are longer than the secondaries.在大多数鸟类中，初级飞羽比次级飞羽长。
Synonyms
- defensive backfield
- 防守后场；防守后卫群 · 与 secondary 同指一个防守单位，语气更正式；在美式英语中通常按单数处理。
Learner notes
Memory Tip
联想 second（第二）：secondary 作名词常指“第二道/次要角色”，如鸟的次级飞羽、后卫球员、次级线圈，都是排在后面的梯队。
Context & Register
语域：mixed 常见场景：ornithology、American football、radar/aviation、electrical engineering、nuclear weapons、finance 该词作名词时，义项分属鸟类学、美式足球、雷达、电工、核武器、金融等不同专业领域，整体多用于技术性、专业性或正式场合；日常口语中较少单独作名词使用。
Grammar Note
该名词有复数形式 secondaries。
Pronunciation & Spelling
这些词都以 -ary 结尾，在美式英语中与 secondary 押韵：primary, necessary, voluntary, customary, dictionary, library。它们的末尾都是重读的 /ɛ/ 后接 /ri/。注意：ordinary, salary, boundary 等拼写相似，但末尾的 -ary 常弱读为 /əri/ 或 /ri/，不与 secondary 押韵。
High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.