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Merriam-Webster's Collegiate Dictionary con·cen·trate
(-trat·ed ; -trat·ing) ETYMOLOGY com- + Latin centrum center DATE 1641 transitive verb 1. a. to bring or direct toward a common center or objective : focus concentrate one's efforts b. to gather into one body, mass, or force power was concentrated in a few able hands c. to accumulate (a toxic substance) in bodily tissues fish concentrate mercury 2. a. to make less dilute concentrate syrup b. to express or exhibit in condensed form intransitive verb 1. to draw toward or meet in a common center 2. gather , collect 3. to focus one's powers, efforts, or attention concentrate on a problem
noun DATE 1883 1. something concentrated: as a. a mineral-rich product obtained after an initial processing of ore b. a food reduced in bulk by elimination of fluid orange juice concentrate 2. a feedstuff (as grains) relatively rich in digestible nutrients — compare fiber English Etymology concentrate 1640, from concenter (1591), from It. concentrare, from L. com-"together" + centrum "center" (see center). Originally "to bring or come to a common center;" sense of "mental focus" is mid-19c. Oxford Advanced Learner's Dictionary-牛津双解-OALD7 ☞ concentrate con·cen·trate / 5kCnsntreit; NAmE 5kB:n- / verb1. ~ (sth) (on sth / on doing sth) to give all your attention to sth and not think about anything else 集中(注意力);聚精会神: ▪ [V] I can't concentrate with all that noise going on. 吵闹声不绝于耳,我无法集中精神。 ▪ [VN] Nothing concentrates the mind better than the knowledge that you could die tomorrow (= it makes you think very clearly). 没有什么比知道自己明天就可能会死去更能让人定下心来去思考种种问题的了。 I decided to concentrate all my efforts on finding somewhere to live. 我决定全力以赴找个住的地方。 2. [VN +adv. / prep.] to bring sth together in six place 使…集中(或集合、聚集): Power is largely concentrated in the hands of a small elite. 权力主要集中在少数精英人物的手里。 We need to concentrate resources on the most run-down areas. 我们需要把资源集中用于最衰败的地区。 Fighting was concentrated around the towns to the north. 战斗集中在北方诸城镇的周围进行。 3. [VN] (technical 术语) to increase the strength of a substance by reducing its volume, for example by boiling it (使)浓缩 SYN reduce
PHRASAL VERBS ▪ 'concentrate on sth to spend more time doing six particular thing than others 集中时间做某事: In this lecture I shall concentrate on the early years of Charles's reign. 这一节课我将着重讲查理王朝的早期统治时期。 noun[C, U] a substance that is made stronger because water or other substances have been removed 浓缩物: mineral concentrates found at the bottom of rivers 在河底发现的精矿 jams made with fruit juice concentrate 用浓缩果汁做的果酱 Oxford Collocations Dictionary for Students of English concentrate verb ADV. fiercely, hard, intently She was sitting at her desk concentrating hard. | fully, properly | mainly, predominantly, primarily | particularly | entirely, exclusively, purely, solely VERB + CONCENTRATE be unable to, can't, couldn't I tried to work but I found I couldn't concentrate. | be difficult to, be hard to, be impossible to | tend to UK banks tend to concentrate on short-term lending. | try to PREP. on/upon He concentrated mainly on the flying and spoke very little. Merriam-Webster's Collegiate Thesaurus-11th Edition v. Function: verb 1 Synonyms: FASTEN 3, concenter, fix, fixate, focus, put, rivet Related Words: establish, set, settle 2 Synonyms: UNIFY 1, compact, consolidate, integrate Related Words: assemble, collect, gather; heap, mass, pile Contrasted Words: dispel, disperse; attenuate, dilute, extenuate, rarefy, thin; dispense, distribute Antonyms: dissipate 3 Synonyms: CONTRACT 3, compress, condense, constrict, shrink 4 Synonyms: CONVERGE , concenter, focus, meetWebster's Third New International Dictionary, Unabridged Search result show the entry is found in: mist concentrate sprayer , or fish protein concentrate , or concentrate sprayer 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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