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TOEFL IELTS BNC: 1918 COCA: 688

focus

Word family
Related topics: Optics, Physics
fo·cus1 /ˈfəʊkəs $ ˈfoʊ-/ ●●○ S3 W2 AWL verb (focused or focussed, focusing or focussing)  
1 give attention to STH 给予某物关注 [intransitiveI, transitiveT]ATTENTION to give special attention to one particular person or thing, or to make people do this (把)集中(于) SYN concentrate
focus on
 He needs to focus more on his career.
他需要更加关注自己的事业。
focus your attention/mind/efforts on something
 She tried to focus her mind on her work.
她试图集中精神干活。
focus (somebody’s) mind/attention (on something) (=make people give their attention to something) 集中(某人的)注意力(于某物上)
 We need to focus public attention on this issue.
我们需要把公众的注意力集中到这个问题上来。
nGrammar
You say:
We focused on two main issues.
Don’t say: We focused in two main issues.
2 camera/telescope 相机/望远镜 [intransitiveI, transitiveT]HPO to point a camera or telescope at something, and change the controls slightly so that you can see that thing clearly 〔对准某物〕调焦,调节(的)焦距
focus on
 She turned the camera and focussed on Martin’s face.
她转过镜头,对准马丁的脸。
focus something on something
 He focused his binoculars on the building opposite.
他把双筒望远镜对准对面的建筑物。
3 eyes 眼睛 [intransitiveI, transitiveT]HPOHBA if your eyes focus, or if you focus your eyes, you look at something and can see it clearly (使) 对准,(使)聚焦
focus on
 All eyes focussed on her.
所有的眼睛都盯着她。
 His eyes were focussed straight ahead.
他的双眼盯着正前方。
4. light [transitiveT]HPO if you focus beams of light, you aim them onto a particular place 使聚焦,使集中
Examples from the Corpus
focus2 ●●○ S3 W2 AWL noun  
1 [singular]SUBJECT the thing, person, situation etc that people pay special attention to 焦点,重点 focal
 The focus of recent research has been on environmental issues.
近期的研究重点是环境问题。
focus of
 The war in Afghanistan had become the focus of media attention.
在阿富汗发生的战争已成为媒体关注的焦点。
 The focus of interest in the series is what goes on in everyday life.
这部连续剧关注的焦点是日常的生活琐事。
 Another focus of feminist debate has been the film industry.
女权主义辩论的另一个焦点是电影业。
 I shall now turn to the main focus of this essay.
现在我来讲讲这篇文章的要点。
 Eggs became the focus for the food poisoning scare.
鸡蛋成了食物中毒恐慌的焦点。
 The focus of the conference shifted from population growth to the education of women.
会议的重点由人口增长问题转移到了妇女教育问题。
2 [uncountableU]ESPECIALLY if your focus is on something, that is the thing you are giving most attention to 〔注意力的〕集中点,中心点
focus on
 Our main focus is on helping people get back into work.
我们关注的重点是帮助人们再就业。
 a shift of focus
重心的转移
3 come into focus/bring something into focus if something comes into focus, or you bring it into focus, people start to talk about it and pay attention to it 成为焦点/使某事成为焦点
Examples from the Corpus
4. in focus/out of focus HPOif a photograph or an instrument such as a camera is in focus, you can see the picture clearly. If it is out of focus, you cannot see the picture clearly. 〔照片、相机等〕焦点对准/没有对准,对焦/失焦
5 [uncountableU] the clearness of the picture seen through an instrument such as a camera 〔相机等成像的〕清晰度,焦点
nCOLLOCATIONSMeanings 1 & 2
adjectives
the main focus
The main focus of our attention will be on providing an efficient service.
the central focus (=most important)
The film’s central focus is the relationship between the two women.
the primary focus (=main or most important)
The economic situation is likely to be the primary focus of the discussion.
verbs
become the focus
When you give a talk you become the focus of attention.
provide a focus
The church provided a focus for the community.
change the focus
He changed the focus from general to specific issues.
shift the focus (=move it to something else)
Opposition MPs accused the prime minister of trying to shift the focus onto other issues.
the focus changes/shifts
The focus of the negotiations shifted to working conditions.
phrases
the focus is on something
The focus is now on improving students’ communication skills.
the focus of attention
In this section of the talk the focus of attention will be on statistics.
a focus of interest
Animal behaviour has long been a focus of interest for scientists.
the focus of debate (=the thing which people are discussing)
The strike became the focus of debate in the media.
the focus of concern (=the thing which people are worried about)
The spread of the disease has become the main focus of concern.
a change/shift in focus
Over the years, there has been a change of focus from treatment to prevention.
Examples from the Corpus
From Longman Business Dictionary
focusfo·cus /ˈfəʊkəsˈfoʊ-/ noun [uncountableU]MARKETING
when a company tries to serve particular groups of customers in a market with particular needs, rather than trying to serve the whole market
focuser noun [countableC]
The focuser seeks to achieve a competitive advantage in its target segments even though it does not possess a competitive advantage overall.
Origin focus1
(1600-1700) Latin hearth (= place for a fire in a house)

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