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BNC: 1564 COCA: 2752
concentration
kɒnsəntrʃən ˌkɑnsənˈtreɪʃən
Word forms: plural concentrations
1 N-UNCOUNT 全神贯注;专心;专注 Concentration on something involves giving all your attention to it. 全神贯注;专心;专注
  • Neal kept interrupting, breaking my concentration.

    尼尔不停地打断我,使得我无法集中注意力。

  • We lacked concentration and it cost us the goal and the game.

    我们注意力不够集中,结果丢了球,输了比赛。

2 N-VAR 集中;汇集 A concentration of something is a large amount of it or large numbers of it in a small area. 集中;汇集
  • The area has one of the world's greatest concentrations of wildlife. [+ of]

    这个地区是世界上野生动物最为密集的区域之一。

  • There's been too much concentration of power in the hands of central authorities. [+ of]

    权力一直过多地集中在中央机构手中。

3 N-VAR [n NOUN] 浓度 The concentration of a substance is the proportion of essential ingredients or substances in it. 浓度
  • pH is a measure of the concentration of free hydrogen atoms in a solution. [+ of]

    pH值是测试溶液中自由氢原子浓度的单位。

  • The latest data showed that global ozone concentrations had dropped several per cent over the last decade.

    最新数据显示,过去10年来全球臭氧的浓度降低了几个百分点。

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BNC: 1564 COCA: 2752
concentration

noun¹

1giving all your attention/effort to sth專心;專注ADJECTIVE | VERB + CONCENTRATION | CONCENTRATION + NOUN | PREPOSITION | PHRASES ADJECTIVEdeep, 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 + CONCENTRATIONdemand, 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干擾注意力Don's voice from outside broke my concentration.外面傳來唐的聲音,打斷了我的思路。CONCENTRATION + NOUNlapse (especially NAmE) 走神PREPOSITIONconcentration on集中於⋯的注意力his concentration on his writing他對寫作的專注PHRASESa 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 ADJECTIVEelevated, 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 + CONCENTRATIONincrease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 + VERBincrease, 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...
General words for numbers, amounts and quantities: accumulation, allocation, allowance...

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