focus

vt.& vi.（使）集中，（使）聚集；调整（镜头，眼睛）焦点[焦距]以便看清

vt.调整（眼睛或者镜头的）焦距；集中（光束于）；聚焦，注视；集中注意力

n.焦点；影象的清晰度；（活动、注意力、兴趣等的）中心；[医]病灶，病症

verb

1. 集中（注意力、精力等于）
   to give attention, effort, etc. to one particular subject, situation or person rather than another
   1. The discussion focused on three main problems.
      讨论集中在三个主要问题上。
   2. Each exercise focuses on a different grammar point.
      每个练习各有不同的语法重点。
   3. The visit helped to focus world attention on the plight of the refugees.
      这次访问促使全世界关注难民困境。
2. （使）调节焦距
   to adapt or be adjusted so that things can be seen clearly; to adjust sth so that you can see things clearly
   1. Let your eyes focus on objects that are further away from you.
      睁大眼睛看清楚离你较远的物体。
   2. It took a few moments for her eyes to focus in the dark.
      过了好几分钟她的眼睛才适应了黑暗。
   3. In this scene, the camera focuses on the actor's face.
      在这个镜头中，摄影机对准演员的脸部。
   4. He focused his blue eyes on her.
      他那蓝色的眼睛注视着她。
   5. I quickly focused the camera on the children.
      我迅速把照相机的镜头对准孩子们。
3. 集中（光束于）；聚焦（于）
   to aim light onto a particular point using a lens

noun

1. 中心点（指人或事物）
   the thing or person that people are most interested in; the act of paying special attention to sth and making people interested in it
   1. It was the main focus of attention at the meeting.
      这是会议上关注的主要焦点。
   2. His comments provided a focus for debate.
      他的评论提供了辩论的重点。
   3. In today's lecture the focus will be on tax structures within the European Union.
      今天讲课的重点是欧洲联盟内部的税制结构。
   4. The incident brought the problem of violence in schools into sharp focus .
      这次事件使校园暴力成为焦点问题。
   5. We shall maintain our focus on the needs of the customer.
      我们将继续重点关注顾客的需要。
   6. What we need now is a change of focus (= to look at things in a different way) .
      我们现在需要的是改变对事物的看法。
2. （眼睛或镜头的）焦距，调焦
   a point or distance at which the outline of an object is clearly seen by the eye or through a lens
   1. The children's faces are badly out of focus (= not clearly shown) in the photograph.
      照片上孩子们的脸模糊不清。
   2. The binoculars were not in focus (= were not showing things clearly) .
      这副双筒望远镜的焦距不对。
3. （光、声等的）焦点，中心点，源
   a point at which waves of light, sound, etc. meet after reflection or refraction ; the point from which waves of light, sound, etc. seem to come
4. （地震的）震源
   the point at which an earthquake starts to happen

过去分词:focused 现在分词:focusing 第三人称单数:focuses 过去式:focused 名词复数形式:foci

focus 焦点

来自拉丁语focus, 火炉，引申词义家，集中点。在1604年德国数学家Johannes Kepler用该词来指数学意义上的聚焦。进一步可能来自PIE*bhe, 照明，发光，词源同beacon.

1. We conclude by drawing attention to the issues around which the debate should focus.
   我们作总结时着重提到了辩论应该关注的一些问题。
2. Their talks are expected to focus on arms control
   他们的会谈预计会集中讨论军备控制问题。
3. The talks will focus on economic development of the region.
   会谈将着重讨论该地区的经济发展。
4. He is currently focusing on assessment and development
   他目前在关注评估和发展。
5. Today he was able to focus his message exclusively on the economy
   今天他得以将主题全部集中在经济方面。
6. Many of the papers focus their attention on the controversy surrounding the Foreign Secretary.
   许多报纸都把关注的焦点放到围绕外交部长出现的争议上。
7. 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。
8. The new system is the focus of controversy
   这个新体制是争议的焦点。
9. Her children are the main focus of her life.
   孩子们是她生活的重心。
10. 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。
11. 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。
12. IBM has also shifted its focus from mainframes to personal computers.
    IBM公司也把重心从特大型机转向了个人电脑。
13. 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。
14. 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。
15. 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。
16. 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。
17. He found the binoculars and focused them on the boat
    他找到双筒望远镜，然后调焦对准那艘船看。
18. Had she kept the camera focused on the river bank she might have captured a vital scene.
    要是她把相机的镜头一直对准河岸的话，可能就捕捉到重要的一幕了。
19. His focus switched to the little white ball
    他把关注点转移到那个小白球上。
20. Together these factors determine the depth of focus
    这些因素综合起来决定了景深。
21. It has no manual focus facility.
    它没有手动调焦功能。
22. Magnetic coils focus the electron beams into fine spots.
    磁线圈把电子束聚焦成微小的点。
23. 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。
24. 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。
25. These issues were brought into sharp focus by the Gulf crisis.
    海湾危机让这些问题备受关注。
26. 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。
27. 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。
28. 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。
29. His administration's economic policy would focus on reining in inflation
    他的政府的经济政策将侧重于控制通货膨胀。