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IELTS BNC: 1341 COCA: 2358
concentrateverbuk/ˈkɒn.sən.treɪt/ us/ˈkɑːn.sən.treɪt/

concentrate verb GIVE ATTENTION

B1 [ I or T ] to direct your attention or your efforts towards a particular activity, subject, or problem专注，专心；全神贯注；集中（注意力）

Come on, concentrate! We don't have all day to do this.快点儿，集中注意力！我们可没有一整天时间来干这事。
I can't concentrate on my work with all that noise.那么吵，我没法集中精力。
I find running concentrates the mind (= helps me to think).我发现跑步能使我集中心思。
I'm going to concentrate on my writing for a while.我要专心写作一会儿。
The company is concentrating (its resources) on developing new products.公司正在集中力量开发新产品。

More examples

I couldn't concentrate on my work - my mind was on other things.

She was concentrating on her book and his voice startled her.

Just try to concentrate on hitting the ball.

I can't concentrate because of all the noise the builders are making.

It's a good film, but the plot is very complicated and you really have to concentrate.

concentrate verb COME TOGETHER

C1 [ T usually passive or I, usually + adv/prep ] to bring or come together in a large number or amount in one particular area集中；聚集；会集；集结

Most of the country's population is concentrated in the north.该国的大多数人口都集中在北部。
In the dry season, the animals tend to concentrate in the areas where there is water.在干旱的季节，动物常常聚集在有水的地区。

concentrate verb REMOVE WATER

[ T ] to make a liquid or substance stronger and reduce its size by removing water from it使浓缩

concentratenoun [ C or U ]uk/ˈkɒn.sən.treɪt/ us/ˈkɑːn.sən.treɪt/

a liquid from which some of the water has been removed浓缩物；浓缩液

fruit-juice concentrate浓缩果汁

specialized geology an ore from which rock has been removed精矿

a mineral concentrate精矿
IELTS BNC: 1341 COCA: 2358
concentrate

verb

ADVERB | VERB + CONCENTRATE | PREPOSITION ADVERB➤hard, intensely, intently (especially BrE) 努力集中精神；全神貫注；專心致志◇She was sitting at her desk concentrating hard.她正坐在書桌邊，精神高度集中。➤fully, properly全神貫注；精神十分集中◇I was tired and couldn't concentrate properly.我累了，無法集中精力。➤mainly, mostly, predominantly, primarily主要專注於；首要集中於▸➤particularly尤其集中▸➤entirely, exclusively, purely, solely全身心地集中；完全集中；只專注VERB + CONCENTRATE➤be unable to, cannot不能集中精神◇I tried to work but I found I couldn't concentrate.我試圖工作但發現不能集中精神。➤be difficult to, be hard to, be impossible to很難集中精神；不可能專注▸➤tend to傾向於專注◇Banks tend to concentrate on short-term lending.銀行傾向於專心做短期貸款。➤try to試圖集中精力PREPOSITION➤on專注於⋯◇He concentrated mainly on the flying and spoke very little.他聚精會神地飛行，很少說話。
IELTS BNC: 1341 COCA: 2358
IELTS BNC: 1341 COCA: 2358
concentrate
To pay attention: concentrate, focus, listen...
To be in a particular position or place: occupy, set, exist...
General words for materials and substances: substance, material, powder...

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