focus是什么意思
2024-01-08 23:18:16
focus
n. 焦点；焦距；中心
v. （使）集中；聚集
名词：focuser 名词复数：focuses 过去式：focused/focussed 过去分词：focused/focussed 现在分词：focusing/focussing 第三人称单数：focuses/focusses
近义词：concentrate，center，middle，blur，
详细释义
n.(名词)
- （活动、注意力、兴趣等的）焦点，中心，重点，集中点
- 【地震学】震源
- 【物】焦点
- 【光】聚焦，对光；对焦点，聚光点，成像清晰点
- 【光】（镜头的）焦点，焦距
- 清晰，明确
- 【医】病灶
- 【数】（椭圆的）焦点
v.(动词)
- 集中，使集中于一点
- 使聚焦，使集中于焦点，特别关注
- 调焦，调（眼睛、镜头等的）焦距，定…的焦点；使（眼睛）注视
- 限制于小区域
- 使清晰
- 聚焦，集中于焦点，注视
双解释义
v.(动词)
- vt. & vi. (使)集中 concentrate
- vt. & vi. 聚集于 come together at a focus; adjust an instrument, etc. so that it is in focus
- vt. & vi. 调整(镜头,眼睛)焦点或焦距以便看清 adjust (a lens, the eye, or lens-like device) to make a clear image
n.(名词)
- [C]焦点,焦距; 中心 the point at which beams of light or heat or waves of sound meet after their direction has been changed; a center of attention
英英释义
Noun
- the concentration of attention or energy on something;
"the focus of activity shifted to molecular biology" "he had no direction in his life"
- maximum clarity or distinctness of an image rendered by an optical system;
"in focus" "out of focus"
- maximum clarity or distinctness of an idea;
"the controversy brought clearly into focus an important difference of opinion"
- a central point or locus of an infection in an organism;
"the focus of infection"
- special emphasis attached to something;
"the stress was more on accuracy than on speed"
- a point of convergence of light (or other radiation) or a point from which it diverges
- a fixed reference point on the concave side of a conic section
Verb
- direct ones attention on something;
"Please focus on your studies and not on your hobbies"
- cause to converge on or toward a central point;
"Focus the light on this image"
- bring into focus or alignment; to converge or cause to converge; of ideas or emotions
- become focussed or come into focus;
"The light focused"
- put (an image) into focus;
"Please focus the image; we cannot enjoy the movie"
组词搭配
～+名词
- focus ones attention集中注意力
- focus ones efforts集中精力
- focus the lens of a microscope调节显微镜的镜片
- focus ones thoughts集中思想
～+副词
- focus accurately准确地调节
- focus properly调整
～+介词
- the focus of sth某物的中心
动词+～
- adjust the focus调整焦点
- take the focus量焦点
形容词+～
- real focus实焦点
- right focus正确的焦点
介词+～
- in focus对准焦距
- out of focus没对准焦距
例句
用作名词(n.)
- He always wants to be the focus of attention.他总想成为注意力的焦点。
- He took out the binoculars and adjusted the focus.他取出双筒望远镜并调整了焦距。
- The main focus of this manual is the management of fresh ground water resources.本指南的主要中心是地下淡水资源的管理。
用作动词(v.)
- The noise made it hard for me to focus on work.噪音让我无法集中注意力工作。
- He focused the suns rays on the paper with a burning glass.他用取火镜使太阳光聚集在纸上。
词语用法
v.(动词)
- focus用作名词时原始意义是“火炉”,引申为“焦点”,转化为动词则为“(使)聚焦”,“(使)集中”。即“调整…的焦点或焦距以便看清”,引申则表示“使(注意力等)集中于某物”。 focus用作及物动词时,可以接望远镜、焦点等作宾语,也可以接阳光等作宾语,还可以接目光等作宾语。focus用于比喻作“致力于”解时,则可以接mind, attention等作宾语。 focus也用作不及物动词,这时常和介词on连用,表示“聚焦于…”“致力于…”等。