concentrate, focus

名詞 focus:

1. the concentration of attention or energy on something
   同義詞：focusing, focussing, focal point, direction, centering
2. maximum clarity or distinctness of an image rendered by an optical system
3. maximum clarity or distinctness of an idea
4. a central point or locus of an infection in an organism
   同義詞：focal point, nidus
5. special emphasis attached to something
   同義詞：stress
6. a point of convergence of light (or other radiation) or a point from which it diverges
   同義詞：focal point
7. a fixed reference point on the concave side of a conic section

動詞 focus:

1. direct one's attention on something
   同義詞：concentrate, center, centre, pore, rivet
2. cause to converge on or toward a central point
3. bring into focus or alignment; to converge or cause to converge; of ideas or emotions
   同義詞：concenter, concentre, focalize, focalise
4. become focussed or come into focus
   同義詞：focalize, focalise
5. put (an image) into focus
   同義詞：focalize, focalise, sharpen

1. Bring the object into focus if you want a sharp photograph.
   要照出清晰的照片，就要把焦點對準物體。
2. All eyes were focused on him.
   大家的眼光都注意著他。
3. You should focus your attention on your work.
   你應(yīng)該把注意力放到工作上。
4. He always wants to be the focus of attention.
   他總想成為注意力的焦點。

fo.cus

n.（名詞）
【復(fù)數(shù)】 fo.cus.es 或 fo.ci [-so., -ko.]

A point at which rays of light or other radiation converge or from which they appear to diverge, as after refraction or reflection in an optical system:
焦點：幾條光線或其他射線相交的一點，或在一個光學系統(tǒng)中經(jīng)折射或反射后呈發(fā)散狀的光線的出發(fā)點：
例句：
the focus of a lens.Also called focal point
透鏡的焦點也作 focal point

See focal length
參見 focal length

The distinctness or clarity of an image rendered by an optical system.
影象的清晰度：因使用光學調(diào)節(jié)系統(tǒng)而形成的分明的或清晰的圖象
The state of maximum distinctness or clarity of such an image:
最大清晰度：此種圖象最好的區(qū)分或清晰狀態(tài)：
例句：
in focus; out of focus.
清晰；不清晰

An apparatus used to adjust the focal length of an optical system in order to make an image distinct or clear:
對焦儀器：為使其圖象明顯或清晰用于調(diào)節(jié)光學系統(tǒng)焦距的儀器：
例句：
a camera with automatic focus.
自動對焦的照相機

A center of interest or activity.See Synonyms at center
中心：興趣或活動的中心參見 center
Close or narrow attention; concentration:
密切或嚴密的注意；集中：
例句：
.He was forever taken aback by[New York`s] pervasive atmosphere of purposefulness—the tight focus of its drivers, the brisk intensity of its pedestrians. (Anne Tyler)
.他久久地驚詫于［紐約］ 所彌漫的那種目的性很強的氣氛——司機們的高度集中以及行人的步伐緊湊快速. (安妮·泰勒)

A condition in which something can be clearly apprehended or perceived:
可清楚明白的狀況：某事物可被清晰理解或感覺的狀況：
例句：
couldn`t get the problem into focus.
不能很清楚地理解這個問題

Pathology The region of a localized bodily infection or disease.
【病理學】 病癥：疾病集中或感染的主要部位
Geology The point of origin of an earthquake.
【地質(zhì)學】 震中：地震的發(fā)源地
Mathematics A fixed point whose relationship with a directrix determines a conic section.
【數(shù)學】 焦點：一個與準線的關(guān)系決定圓錐形狀的定點
v.（動詞）
fo.cused 或 fo.cussed fo.cus.ing 或 fo.cus.sing fo.cus.es 或 fo.cus.ses
v.tr.（及物動詞）
To cause (light rays, for example) to converge on or toward a central point; concentrate.
使集中，使聚合：使（如光線）集中在一中心點或向中心點集中；集中

To render (an object or image) in clear outline or sharp detail by adjustment of one`s vision or an optical device; bring into focus.
使集中于焦點：通過調(diào)節(jié)視力或光學儀器使（一物體或圖象）外緣清晰或細節(jié)分明；調(diào)焦
To adjust (a lens, for example) to produce a clear image.
調(diào)焦：調(diào)整（如透鏡）而得到清晰圖象
To direct toward a particular point or purpose:
集中：導向一特定點或目的：
例句：
focused all their attention on finding a solution to the problem.
集中全部注意力尋找解決問題的辦法

v.intr.（不及物動詞）
To converge on or toward a central point of focus; be focused.
集中于焦點：在中心焦點或向中心焦點集中；被集聚
To adjust one`s vision or an optical device so as to render a clear, distinct image.
調(diào)焦：調(diào)整視力或光學儀器以使圖象鮮明清晰
To concentrate attention or energy:
集中：集中注意力或能力：
例句：
a campaign that focused on economic issues.
一次集中解決經(jīng)濟問題的運動

來源：
Latin [hearth]
拉丁語 [火爐]

【引伸】
fo.cuser
n.（名詞）