concentration
柯林斯词典
1. N-UNCOUNT Concentration on something involves giving all your attention to it. 专注
Neal kept interrupting, breaking my concentration. 尼尔不断打扰，打断我的注意力。
2. N-VAR A concentration of something is a large amount of it or large numbers of it in a small area. 集中
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。
3. N-VAR 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. pH值是溶液中游离氢原子浓度的计量单位。
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concentration /ˌkɒnsənˈtreɪʃən/ (concentrations)
剑桥词典
- This is a very difficult piece of music to play - it demands a lot of concentration.
- Heart surgery exacts tremendous skill and concentration.
- The job demands a high level of concentration.
- Hyperactive children often have poor concentration and require very little sleep .
- Even a low level of noise interferes with my concentration.
concentration noun (ATTENTION)
[ 不可数或单数名词：没有复数形式的名词 ]the ability to think carefully about something you are doing and nothing else
专注，专心
The noise outside made concentration difficult . 外面吵得我难以集中注意力。
There was a look of intense concentration on her face . 她脸上带着全神贯注的表情。
I find that yoga improves my powers of concentration. 我发现练瑜伽提高了我的注意力。
It was hard to follow what the teacher was saying, and eventually I lost concentration. 我发现自己难以理解老师在讲什么，最后就走神了。
The party's concentration on tax reduction has won them a lot of support . 政府集中推行减税政策，从而赢得了广泛的拥护。
例句
concentration noun (AMOUNT)
[ 可数名词：有复数形式的名词 or 不可数或单数名词：没有复数形式的名词 ]a large number or amount of something in the same place
集中；聚集；汇集
There is a heavy concentration of troops in the area . 该地区有重兵驻扎。
[ 可数名词：有复数形式的名词 or 不可数或单数名词：没有复数形式的名词 ] chemistry specialized
the exact amount of one particular substance that is found in another substance
浓度
a concentration of one part per million 百万分之一的浓度
High concentrations of toxic elements were found in the polluted areas . 在被污染地区发现了高浓度的有毒元素。 返回 concentration