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单词 concentrate
释义 con·cen·trate
I. \ˈkȧn(t)sən.ˌtrāt also -änˌsen-; usu -ād.+V\ verb
(-ed/-ing/-s)
Etymology: com- + Latin centrum center + English -ate (v. suffix) — more at center
transitive verb
1. : to bring or direct toward a common center or objective : focus
 < concentrating all their efforts on reaching shore >
: gather into one body, mass, or force
 < there are times when power must be concentrated in a few able hands >
2. : to render less dilute or diffuse:
 a.
  (1) : to remove water from
   < in making maple syrup one concentrates the sap by boiling >
  (2) : to separate dross from
   < repeated concentrating of the ore is necessary >
  (3) : to free from impurities
   < copper may be concentrated electrolytically >
 b. : to express the essence of
  < the message of the New Testament is concentrated in the Sermon on the Mount >
  : render more condensed
  < the essence of her sex was concentrated in her charming obstinacy >
intransitive verb
1. : to draw toward or meet in a common center
2. : to settle closely : gather, collect
 < recent immigrants tend to concentrate in port cities >
 < social and racial tensions concentrate in industrial centers >
3.
 a. : to bring all one's powers, faculties, or activites to bear (as upon a course of action, a thought, or an object)
  < concentrate on a problem >
  < farmers are concentrating on wheat this year >
  < to be able to concentrate on the same matter for a considerable time is essential to difficult achievement — Bertrand Russell >
 b. : major
Synonyms: see unify
II. adjective
Etymology: com- + Latin centrum + English -ate (adjective suffix)
: concentrated
III. noun
(-s)
: something obtained by concentration : a concentration or concentrated substance: as
 a. : the remainder of dressed ore that contains the mineral sought
 b. : a feedstuff rich in digestible nutrients in comparison to its bulk (as grains, oil meals, or tankage) — opposed to roughage
 c. : a food reduced in bulk by elimination of watery fluid
  < orange juice concentrate >
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更新时间:2024/11/10 13:06:55