focus是什么意思

focus

英[ˈfəʊkəs] 美[ˈfoʊkəs]

v. 集中，调焦，聚焦，集中光束，（物理学中光波、声波等的）焦点，聚光点；
n. 焦点，中心点，聚焦点，震源，调节（照相机、显微镜等的）焦距，（使）集中目光；（使）逐渐聚焦；

复数：foci; focuses;

第三人称单数：focuses;

过去式：focused;

过去分词：focused;

现在分词：focusing;

同义词

vi.
focus的同义词之：集中;调节
adjust concentrate
focus的同义词之：其他释义
centre nucleus highlight concentrate centralize adjust

同义词解析

以下这两个动词均有"集中，聚集" 的意思
concentrate：指把人或物集中在一起，也可指把精力或注意力集中于某一事物上。
focus：侧重指把光、热、射线等集中于一点，也可指把思想或精力等集中于某人或某事情上。

柯林斯高阶英汉双解学习词典释义

V-ERG

集中(注意力);关注

If you focus on a particular topic or if your attention is focused on it, you concentrate on it and think about it, discuss it, or deal with it, rather than dealing with other topics.
例句
The research effort has focused on tracing the effects of growing levels of five compounds... 研究重点追踪了5种化合物含量上升的影响。 He is currently focusing on assessment and development... 他目前在关注评估和发展。
N-COUNT

主题;重点;焦点

The focus of something is the main topic or main thing that it is concerned with.
例句
The UN's role in promoting peace is increasingly the focus of international attention... 联合国在促进和平方面的作用越来越受到国际社会的关注。 The new system is the focus of controversy... 这个新体制是争议的焦点。
N-COUNT

关注;注意

Your focus on something is the special attention that you pay it.
例句
He said his sudden focus on foreign policy was not motivated by presidential politics... 他说他突然关注外交政策并非受总统政治的驱使。 The report's focus is on how technology affects human life rather than business... 这个报告关注的是技术如何影响人类生活而非商业活动。
N-UNCOUNT

目的;意图;含义

If you say that something has a focus, you mean that you can see a purpose in it.
例句
Somehow, though, their latest album has a focus that the others have lacked... 但是，他们的最新专辑设法找到了其他专辑所欠缺的一种目的性。 Suddenly all of the bizarre and seemingly isolated examples took on a meaningful focus. 突然之间，所有那些怪异且看上去孤立的例子都具有了意义。
V-ERG

注视;使(相机、望远镜等)聚焦;给…调焦

If you focus your eyes or if your eyes focus, your eyes adjust so that you can clearly see the thing that you want to look at. If you focus a camera, telescope, or other instrument, you adjust it so that you can see clearly through it.
例句
Kelly couldn't focus his eyes well enough to tell if the figure was male or female... 凯利没有看清楚那个人影到底是男的还是女的。 His eyes slowly began to focus on what looked like a small dark ball... 他的眼睛慢慢开始看清楚那个看上去像是个小黑球的东西。
N-UNCOUNT

注视;调焦;对焦

You use focus to refer to the fact of adjusting your eyes or a camera, telescope, or other instrument, and to the degree to which you can see clearly.
例句
His focus switched to the little white ball... 他把关注点转移到那个小白球上。 Together these factors determine the depth of focus... 这些因素综合起来决定了景深。
VERB

集中(光束);聚焦

If you focus rays of light on a particular point, you pass them through a lens or reflect them from a mirror so that they meet at that point.
例句
Magnetic coils focus the electron beams into fine spots. 磁线圈把电子束聚焦成微小的点。
N-COUNT

聚焦点

The focus of a number of rays or lines is the point at which they meet.
PHRASE

(图像)清晰;(照相机、望远镜等)对准焦点

If an image or a camera, telescope, or other instrument is in focus, the edges of what you see are clear and sharp.
例句
Pictures should be in focus, with realistic colours and well composed groups. 照片应该图像清晰，颜色逼真，构图合理。
PHRASE

受关注;在讨论;(目的和性质)清楚的，明白的

If something is in focus, it is being discussed or its purpose and nature are clear.
例句
This aggression is the real issue the world should be concerned about. We want to keep that in focus... 这次侵略才是世界应该关注的真正问题。我们想继续保持关注。 These issues were brought into sharp focus by the Gulf crisis. 海湾危机让这些问题备受关注。
PHRASE

焦点没对准;脱焦;失焦

If an image or a camera, telescope, or other instrument is out of focus, the edges of what you see are unclear.
例句
In some of the pictures the subjects are out of focus while the background is sharp. 一些照片背景很清晰，被摄主体却因失焦而显得模糊。 ...a lot of out-of-focus photographs. 许多对焦不实的照片
PHRASE

不受关注;(目的和性质)不清晰的

If something is out of focus, it is not being discussed or its purpose or nature is not clear.
例句
The deficit in the US balance of payments put these considerations out of focus... 美国的国际收支逆差使这些因素没有得到关注。 The movement towards democracy in Latin America and the foreign debt problems that have plagued it have gone out of focus. 拉丁美洲的民主运动和困扰该地区的外债问题已经淡出人们的视线。

英汉词典释义

vt. & vi.
(使)集中, (使)聚集
调整(镜头, 眼睛)焦点[焦距]以便看清
n.
【物理学】焦点；【光学】(镜头的)焦点，焦距; 聚焦，对焦点，对光；成像清晰点
The camera has two focuses. 这部相机有两个焦距。 She was the focus of everyone's attention. 她是大家注意的焦点。
(活动、注意力、兴趣等的)中心，重点，集中点
【医学】(病)灶；疫源地
【数学】 1). (椭圆的)焦点；2). (抛物线或双曲线的)螺线极点
vt.
集中（光束于）；聚焦（于）
中心点（指人或事物）
（眼睛或镜头的）焦距，调焦
（光、声等的）焦点，中心点，源
（地震的）震源
vi.
集中
The beams of light moved across the sky and focused on the aircraft. 光束穿过天空，射向飞机。

英英词典释义

Noun
1. the concentration of attention or energy on something;
"the focus of activity shifted to molecular biology""he had no direction in his life"
2. maximum clarity or distinctness of an image rendered by an optical system;
"in focus""out of focus"
3. maximum clarity or distinctness of an idea;
"the controversy brought clearly into focus an important difference of opinion"
4. a central point or locus of an infection in an organism;
"the focus of infection"
5. special emphasis attached to something;
"the stress was more on accuracy than on speed"
6. a point of convergence of light (or other radiation) or a point from which it diverges
7. a fixed reference point on the concave side of a conic section
Verb
1. direct one's attention on something;
"Please focus on your studies and not on your hobbies"
2. cause to converge on or toward a central point;
"Focus the light on this image"
3. bring into focus or alignment; to converge or cause to converge; of ideas or emotions
4. become focussed or come into focus;
"The light focused"
5. put (an image) into focus;
"Please focus the image; we cannot enjoy the movie"

行业词典

力学：焦点；
医学：〔复foci〕焦点，聚光点：光线或声波的会聚点；病灶：疾病过程的主要中心；疫源地；
数学：焦点；
水产：病灶；组织或器官遭受致病因子的作用而引起病变的部位。；
物理学：焦点；一种奇点。；
航天：焦点；

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