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IELTS BNC: 1341 COCA: 2358
concentrate
verb /ˈkɒns(ə)nˌtreɪt/
present tense
I/you/we/theyconcentrate
he/she/itconcentrates
present participleconcentrating
past tenseconcentrated
past participleconcentrated
  1. 1
    [I] to give all your attention to the thing you are doing 集中注意力;专注

    I was sleeping badly and finding it hard to concentrate. 我没睡好,因此很难集中注意力。

    concentrate on :

    Stop talking and concentrate on your work. 别说话了,专心工作。

     Synonyms and related words
    To pay attention: concentrate, focus, listen...
    1. a.
      [I/T] to give most of your attention to one aim or activity 把注意力集中(于)
      concentrate on :

      Luke wants to concentrate on his film career. 卢克想全力以赴投身电影事业。

      concentrate your efforts/attention on something :

      You should concentrate your efforts on passing these exams. 你应该集中精力通过这些考试。

       Synonyms and related words
      To pay attention: concentrate, focus, listen...
  2. 2
    [T] [usually passive] if something is concentrated in an area, that is where it mainly exists 集结;聚集

    The violence was concentrated mostly in the north. 暴力事件大多集中在北方。

    The population is concentrated along the river banks. 人口集中在沿河两岸。

     Synonyms and related words
  3. From our crowdsourced Open Dictionary
    3
    to make a solution of something in water stronger by removing water from it

    You can concentrate the solution by adding more salt.

    Submitted by Thao Dao from Viet Nam on 10/06/2018
concentrate
noun [C/U] /ˈkɒns(ə)nˌtreɪt/
singularconcentrate
pluralconcentrates
  1. a substance that has had water removed from it so that it has a stronger effect, taste etc 浓缩物

    tomato concentrate 浓缩番茄汁

     Synonyms and related words
    General words for materials and substances: substance, material, powder...

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