second-class

英式音标：[ˈsekəndklɑ:s]

美式音标：[ˈsɛkəndˈklæs]

词汇分类：Google大数据2.9万高频美语词汇表,美国当代语料库（COCA）20000高频,[学术]Academic Vocabulary List 学术20000高频词汇,柯林斯Cobuild词频 • 1星词汇 ★☆☆☆☆,美国英语最新词频表（10000~20000）,当代美语语料库COCA词频大全

概况：

adj. 第二流的；次劣的

adv. 坐二等车；作为第二类邮件

词义：

adj.

第二流的；次要的；第二地位的；二类邮件的

adv.

二类地；乘二等车地；坐二等舱地；

英英释义

second-class[ 'sekənd'klɑ:s, -'klæs ]

n.

not the highest rank in a classification

同义词：second class

not the highest quality in a classification

同义词：second class

accommodations on a ship or train or plane that are less expensive than first class accommodations

同义词：Cabin classsecond class

adj.of inferior status or quality

"a second-class citizen"; "second-class accommodations"

adv.by second class conveyance

同义词：second class

用法：

权威例句

Quantization of relativistic systems with boson and fermion first- and second-class constraints

Terabus: Terabit/Second-Class Card-Level Optical Interconnect Technologies

Path integral quantization of field theories with second-class constraints ☆ ☆☆

Migrants as second-class workers in urban China? A decomposition analysis ☆

AN Sp(2) COVARIANT FORMALISM OF A GENERALIZED CANONICAL QUANTIZATION WITH SECOND-CLASS CONSTRAINTS

An ${rm Sp}(2)$ covariant formalism of a generalized canonical quantization with second-class constraints.

Tests for Second-Class Currents in Nuclear Beta Decay

Hamiltonian embedding of a second-class system with a Chern-Simons term

Hamilton-Jacobi treatment of second-class constraints.

A study of the axial-vector form factor and second-class currents in antineutrino quasielastic scattering

同义词：middling

英语词源：

second-class (adj.)

1833, from noun phrase (1810), from second (adj.) + class (n.). Phrase second-class citizen is recorded from 1942.

The Negro recognizes that he is a second-class citizen and that status is fraught with violent potentialities, particularly today when he is living up to the full responsibilities of citizenship on the field of battle. [Louis E. Martin, "To Be or Not to Be a Liberal," in "The Crisis," September 1942]

造句：

1. Airman (Second Class)

列兵(空军)

-- 来源 -- 英汉 - 翻译参考[网络]

2. second-class stateroom;second class cabin

二等舱

-- 来源 -- 英汉 - 翻译样例 - 汉英

3. a second-class citizen; second-class accommodations.

二等公民；二等住宿。

-- 来源 -- 汉英 - 翻译参考

4. second - class issues.

次要的议题

-- 来源 -- 英汉 - 短句参考

5. second-class; second-rate; inferior

次等

-- 来源 -- 英汉 - 翻译参考[网络]

6. second class constraint

第二类约束

-- 来源 -- 英汉 - 翻译参考[网络]

7. second-class; second-rate; second

二等

-- 来源 -- 英汉 - 翻译参考[网络]

8. second class ore

二级矿石

-- 来源 -- 英汉 - 翻译参考[网络]

9. second class conductor

第二类导体

-- 来源 -- 英汉 - 翻译参考[网络]

10. second class berth

二等卧铺票

-- 来源 -- 英汉 - 翻译参考[网络]