focus的过去分词

1. （活动、注意力、兴趣等的）焦点，中心，重点，集中点
2. 【地震学】震源
3. 【物】焦点
4. 【光】聚焦，对光；对焦点，聚光点，成像清晰点
5. 【光】（镜头的）焦点，焦距
6. 清晰，明确
7. 【医】病灶
8. 【数】（椭圆的）焦点

1. 集中，使集中于一点
2. 使聚焦，使集中于焦点，特别关注
3. 调焦，调（眼睛、镜头等的）焦距，定…的焦点；使（眼睛）注视
4. 于小区域
5. 使清晰
6. 聚焦，集中于焦点，注视

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

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"
   

1. 焦距：PART 1 数码相机剖析篇 单元1 像素点(pixel) 单元2 拍摄尺寸 (分辨率) 单元3 感光组件--CCD VS CMOS 单元4 光圈(Aperture) 单元5 快门(Shutter) 单元6 焦距(Focus) --定焦与变焦 单元7 对焦模式 单元8 测光模式 单元9 感光

2. 专一化：企业成功的三种基本战略, 有三种提供成功机会的基本战略方法,可能使公司成为同行中的佼佼者: 总成本领先(overall cost leadership)战略 差异化(differentiation)战略 专一化(focus)战略 有时公司可能成功地寻求一种以上的方法作为其基本目标,

3.

3.focus：fiber optic connection universal system; 光纤连接通用系统

4.focus：federation on computing in the united state; 美国计算联盟（国际信息处理联合会属下）

1. A defect of vision prevented him from focusing accurately.
   视力缺陷使他无法准确聚焦。
2. He must be very tired today, he doesn't seem to focus at all.
   他今天一定很累,他似乎无法专心思考。

1. He focuses the lens of a microscope.
   他调整显微镜的镜片以定焦点。
2. His eyes were so tired that he had difficulty focusing it.
   他的眼睛累了,无法准确聚焦。
1
3. Unless the object is properly focused the photograph will be blurred.
   除非把焦距调准,否则拍出的照片是不清楚的。

1. The camera has two focuses.
   这部相机有两个焦距。
2. She was the focus of everyone's attention.
   她是大家注意的焦点。
3. He is adjusting the focus of camera.
   他正在调相机的焦距。
4. The coffee shop is the focus of social life in French.
   在法国,咖啡馆是社交生活的中心。

focus on (v.+prep.)

把…作为兴趣中心 like sth most
focus on sth

A near-sighted person cannot focus accurately on distant objects.

一个近视的人不能够准确地调节眼睛以看到远处物体。

focus sth on sth

He focused the sun's rays on a paper with a burning-glass.

他用一面凸透镜把阳光聚焦在纸上。

If you focus bright sunlight on dry wood with a glass, it will start burning.

假如你用镜子将强烈的阳光聚焦于干燥的木头上,它便会燃烧起来。

focus on sth/v-ing

Today we're going to focus on the question of homeless people.

今天,我们主要讨论无家可归者的问题。

Many firms are focusing on increasing their markets overseas.

许多商行都在注意在国外扩大市场。

focus sth on sb/sth

He focused his mind on his lessons.

他把心思集中在功课上。

You should focus your attention on your work.

你应该聚精会神地工作。

We must focus our attention on the question of reducing costs.

我们必须将注意力集中在降低费用的问题上。

When the coin failed to appear, attention was focused once more on poor Lebeau.

当找不到那枚古币以后,大家的注意力再次转到勒保身上。

All eyes were focused on him when he came in.

他进来时大家都注视着他。

focus on sth/v-ing

Today, we're going to focus on the relationship between freedom and necessity.

今天,我们将集中讨论自由和必然之间的关系这一问题。

This year our meeting focuses on the question of children's rights.

今年我们会议的中心问题是儿童权益问题。

The show focuses on making fun of politicians.

这场演出旨在嘲弄那些政客。

• ☆ 17世纪40年代进入英语，直接源自古典拉丁语的focus，意为炉床，壁炉。