cen.ter

center的音标和读音：
DJ音标发音： [ˈsentə]
KK音标发音： [ˈsɛntɚ]

center的词性：
n.Abbr. ctr（名词）缩写 ctr

1. A point or place that is equally distant from the sides or outer boundaries of something; the middle:
中心：与各边或某物的外部边界等距的一点或一个地方；中间：

the center of town; the center of a stage.
市中心；舞台中心

2. A point equidistant from the vertexes of a regular polygon.
中心点，中枢：与一正多边形各角顶点等距的一点

3. A point equidistant from all points on the circumference of a circle or on the surface of a sphere.
圆心，球心：与一圆周上或一球面上所有点等距的一点

4. A point around which something rotates or revolves:
循环中心：物体围绕旋转的一点：

The sun is the center of our solar system.
太阳是太阳系的中心

5. A part of an object that is surrounded by the rest; a core:
核心：物体的一部分，其被物体的其余部分包围；内核：

chocolates with soft centers.
具有松软夹心的巧克力

6. A place where a particular activity or service is concentrated:
中心：某项特别的活动或服务集中的地方：

a medical center.
医疗中心

7. A point of origin, as of influence, ideas, or actions:
发源地：影响，观念或行动发源的某一点：

a center of power; a center of unrest.
权力中心；纷扰的中心

8. An area of dense population:
人口密集地区：

a metropolitan center.
大都市中心

9. A person or thing that is the chief object of attention, interest, activity, or emotion.
领导中枢：作为注意力、兴趣、活动或情感的中心目标的人或事物

10. A person, object, or group occupying a middle position.
中间人物、物体或集体：占据中间位置、立场的人、物或团体

11. Often Center A political group or a set of policies representing a moderate view between those of the right and the left.
常作 Center 中间派：代表居于左翼与右翼之间的温和观点的政治集团或一系列政策

12. Physiology A group of neurons in the central nervous system that control a particular function:
【生理学】 神经中枢：中央神经系统内控制一项特殊功能的一组神经细胞：

the vasomotor center.
血管舒缩神经中枢

13. Sports A player who holds a middle position on the field, court, or forward line in some team sports, such as football and basketball.
【体育运动】 中锋：在一些团体运动项目中，如足球和篮球，占据场地或前锋线上中间位置的运动员

14. Baseball Center field.
【棒球】 内野

15. A small conical hole made in a piece of work with a center punch so that a drill can be accurately positioned within it.
中心孔，转柄孔：在带中心冲头的工件上为使钻头准确放置而做的小锥形孔

16. A bar with a conical point used to support work, as during turning on a lathe.
中心杆：带锥形顶尖的用来支撑加工件的条杆，如开动镟床时所用

center的词性：
v.（动词）

center的词性：
v.tr.（及物动词）

17. To place in or at the center:
放在中心：放置在中心内或中心上：

centered the vase on the table.
放花瓶于桌子正中

18. To direct toward a center or central point; concentrate or focus:
导向中心，集中：导向，引向一中心或一中心点；集中或聚焦：

tried to center the discussion on the main issues.
尽力使讨论集中于主要问题上

19. Football To pass (the ball) back between the legs to begin a down.
【橄榄球】 传中：将球从两腿中间传回以开始一个下位

center的词性：
v.intr.（不及物动词）

20. To be concentrated; cluster:
集中，聚集：

The epidemic centered in the urban areas.
传染病集中于市区

21. To have a central theme or concern; be focused:
具有中心主题或关注，聚焦：

Her novels center on the problems of adolescence.
她的小说以青少年问题为中心

center的词源：

22. Middle English centre
中古英语 centre

23. from Old French
源自 古法语

24. from Latin centrum
源自 拉丁语 centrum

25. from Greek kentron [center of a circle]
源自 希腊语 kentron [圆的中心]

26. from kentein [to prick] * see kent-
源自 kentein [刺] *参见 kent-

center， focus， headquarters， heart， hub， seat

27. The central meaning shared by these nouns is “a region, person, or thing around which something, such as an activity, is concentrated”:
这些名词都有的一个中心意义为“一个地区，人或事物某事物，如一项活动， 围绕它而聚集”：

a great cultural center;
巨大的文化中心；

the focus of research efforts;
研究工作的焦点；

the headquarters of a multinational corporation;
跨国公司的总部；

a town that is the heart of the colony;
作为殖民地的中心的城镇；

the hub of a steel empire;
钢铁帝国的中心；

the seat of government.
政府的中心所在地

center的用法：

28. According to traditional canons of usage, the verb center may be freely used with the prepositions on, upon, in, or at; but its use with around is excoriated as “ungrammatical,” “illogical,” “geometrically senseless,” and “physically impossible.” But the fact that writers persist in using this phrase in sentences such as The discussion centered around the need for curriculum revision (where traditionalists would require revolved around ) suggests a widespread perception that center around, for all its apparent illogicality, may sometimes represent the true nature of experience. Center may denote a variety of relations involving having, finding, or turning about a center, and the choice of a preposition depends on what is intended. There is reputable precedent for usages such as Our hope centered in the young sovereign;
根据传统用法，动词center 可以和介词 on，upon，in 或 at 自由连用； 但它和around 连用却被严厉指责为“不合语法”，“不合逻辑”，“几何上无意义”，“物理上不可能”。 然而事实上作家们坚持在句子里使用这个短语，比如讨论围绕修订工作的需求展开 （这里传统人士将用 rovolve around ）表明 center around 揭示了一个普遍的认识， 即尽管它明显不合逻辑，有时也会代表经验的真正特性。Center 可以指示包括拥有，发现或围绕中心转动在内的多种关系， 介词的选择取决于具体意向。用法上有著名的先例，如我们的希望集中于年轻的帝王身上；

His thoughts centered on the long journey before him;
他的思绪集中于面前漫漫长路上；

29. and The trade is centered at Amsterdam; as well as for usages such as A storm of battle centered around the king, in which example around seems to be the only appropriate choice. See Usage Note at equal
以及贸易集中于阿姆斯特丹； 也有这样的用法，如战斗的风暴围绕着国王 ， 在这个例子里around 似为唯一适当的选择 参见 equal