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BNC: 1564 COCA: 2752

concentration

noun
 
/ˌkɒnsnˈtreɪʃn/
/ˌkɑːnsnˈtreɪʃn/
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  1.  
     [uncountable] the ability to direct all your effort and attention on one thing, without thinking of other things專心；專注
    • This book requires a great deal of concentration.這本書需要全神貫注才能讀懂。
    • Tiredness affects your powers of concentration.疲勞影響注意力的集中。
    • One momentary lapse in concentration could prove fatal.瞬間的注意力不集中都可能是致命的。
    • He has a poor concentration span (= cannot concentrate for long) 他注意力不集中
    Extra Examples
    • Don's voice from outside broke my concentration.外面傳來唐的聲音，打斷了我的思路。
    • She has great powers of concentration for a child her age.就她這個年齡的孩子而言，她的專注力極強。
    • The game requires great concentration.這個遊戲要求注意力高度集中。
    • a look of total concentration on her face她聚精會神的樣子
    • The noise had disturbed his concentration.噪音使他不能集中注意力。
    • The manager criticized the players for showing a lack of concentration.經理批評運動員注意力不集中。
    Oxford Collocations Dictionaryadjective
    • deep
    • great
    • intense
    • …
    verb + concentration
    • demand
    • need
    • require
    • …
    concentration + noun
    • lapse
    preposition
    • concentration on
    phrases
    • a lack of concentration
    • a lapse in concentration
    • a lapse of concentration
    • …
    See full entry
  2. [uncountable] concentration (on something) the process of people directing effort and attention on a particular thing關注；重視
    • He stressed the need for greater concentration on environmental issues.他強調需要更加關注環境問題。
    • In his concentration on the job in hand, John allowed his normal vigilance to slip.由於全神貫注於手頭的工作，約翰放鬆了正常的警惕。
  3. [countable] concentration (of something) a lot of something in one place集中；聚集
    • a concentration of industry in the north of the country該國北部的工業集中地
    Extra Examples
    • The greatest concentration of traffic is in the city centre.交通最密集的地方是市中心。
    • The greatest concentration of traffic is downtown.交通最密集的地方是商業中心區。
    Oxford Collocations Dictionaryadjective
    • elevated
    • great
    • heavy
    • …
    verb + concentration
    • increase
    • decrease
    • reduce
    • …
    concentration + verb
    • increase
    • rise
    • decrease
    • …
    See full entry
  4. [countable, uncountable] the amount of a substance in a liquid or in another substance濃度；含量
    • glucose concentrations in the blood血液中的葡萄糖含量
    Extra Examples
    • Evaporation gradually increases the salt concentration of the water.蒸發作用使水中鹽的濃度逐漸升高。
    • The concentration of nitrates in the drinking water has risen in recent years.近年來飲用水中硝酸鹽的濃度升高了。
BNC: 1564 COCA: 2752
concentration

noun¹

 1giving all your attention/effort to sth專心；專注ADJECTIVE | VERB + CONCENTRATION | CONCENTRATION + NOUN | PREPOSITION | PHRASES ADJECTIVE➤deep, great, intense高度專注▸➤absolute, total絕對／完全專心◇a look of total concentration on her face她聚精會神的樣子➤good專注▸➤poor不專注▸➤exclusive專心致志VERB + CONCENTRATION➤demand, need, require要求專注；需要集中注意力◇The game requires great concentration.這個遊戲要求注意力高度集中。➤lose不能集中注意力▸➤break, disturb幹擾注意力◇Don's voice from outside broke my concentration.外面傳來唐的聲音，打斷了我的思路。CONCENTRATION + NOUN➤lapse (especially NAmE) 走神PREPOSITION➤concentration on集中於⋯的注意力◇his concentration on his writing他對寫作的專注PHRASES➤a lack of concentration注意力不集中▸➤a lapse in concentration, a lapse of concentration走神◇One momentary lapse in concentration could prove fatal.瞬間的注意力不集中都可能是致命的。➤powers of concentration專注力◇She has great powers of concentration for a child her age.就她這個年齡的孩子而言，她的專注力極強。
concentration

noun²

 2large number/amount of sth in one place大量聚積ADJECTIVE | VERB + CONCENTRATION | CONCENTRATION + VERB ADJECTIVE➤elevated, great, heavy, high, large高密度；非常集中；高度集中◇The greatest concentration of traffic is downtown.交通最密集的地方是商業中心區。➤low低密度➤varying變化的密度➤calcium, glucose, oxygen, salt, etc.鈣的含量、葡萄糖的濃度、氧的含量、鹽的濃度等◇Evaporation gradually increases the salt concentration of the water.蒸發作用使水中鹽的濃度逐漸升高。➤geographical地理上的集中VERB + CONCENTRATION➤increase增加含量➤decrease, reduce降低濃度；減少含量➤calculate, determine, estimate計算／測定／估計濃度CONCENTRATION + VERB➤increase, rise含量增加；濃度升高◇The concentration of nitrates in the drinking water has risen in recent years.近年來飲用水中硝酸鹽的濃度升高了。➤decrease, fall濃度下降／降低
BNC: 1564 COCA: 2752
concentration noun
⇨ attention
BNC: 1564 COCA: 2752
concentration
Careful thought: thought, consideration, assessment...
Large amounts or quantities of a specific kind: a froth of something, avalanche, blizzard...
General words for numbers, amounts and quantities: accumulation, allocation, allowance...

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