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Concentration N Var Large 例:The 英[ˌkɒnsnˈtreɪʃn 美[ˌkɑnsnˈtreɪʃn N.集中;专心;关注;浓度 N Uncount

单词 concentration
音标
英[ˌkɒnsnˈtreɪʃn] 美[ˌkɑnsnˈtreɪʃn]
解释
n.集中;专心;关注;浓度;
例句

N-UNCOUNT
全神贯注;专心;专注
Concentration on something involves giving all your attention to it.
例:Neal kept interrupting, breaking my concentration...尼尔不停地打断我,使得我无法集中注意力。
例: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。

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.
例:The area has one of the world's greatest concentrations of wildlife...这个地区是世界上野生动物最为密集的区域之一。
例:There's been too much concentration of power in the hands of central authorities.权力一直过多地集中在中央机构手中。

N-VAR
浓度
The concentration of a substance is the proportion of essential ingredients or substances in it.
例:pH is a measure of the concentration of free hydrogen atoms in a solution...pH值是测试溶液中自由氢原子浓度的单位。
例: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。
变形
pl:concentrations~

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