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词汇 concentrationIELTS重点词汇
释义

concentration

英??[?k?ns?n?tre???n]
????

[NOUN]

    NOUN. 名词
  • concentrations

    1.?[U 不可数名词] 专注

    Concentration on something involves giving all your attention to it.

    双语例句

    例:

    Neal kept interrupting, breaking my concentration.

    尼尔不断打扰,使得我不能集中注意力。

    2.?[C, U 有变体名词] 集中

    A concentration of something is a large amount of it or large numbers of it in a small area.

    双语例句

    例:

    The area has one of the world's greatest concentrations of wildlife.

    该地区有世界上野生生物最集中的区域之一。

    例:

    There's been too much concentration of power in the hands of central authorities.

    过去中央政府手中的权力过于集中。

    3.?[C, U 有变体名词] 浓度

    The concentration of a substance is the proportion of essential ingredients or substances in it.

    双语例句

    例:

    pH is a measure of the concentration of free hydrogen atoms in a solution.

    pH值是溶液中游离氢原子浓度的计量单位。

    例:

    Global ozone concentrations had dropped over the last decade.

    在过去十年中全球范围的臭氧浓度下降了。

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