concentration
柯林斯詞典
1. N-UNCOUNT Concentration on something involves giving all your attention to it. 專注
Neal kept interrupting, breaking my concentration. 尼爾不斷打擾，打斷我的注意力。
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. 該地區(qū)有世界上野生生物最集中的區(qū)域之一。
3. N-VAR The concentration of a substance is the proportion of essential ingredients or substances in it. 濃度
pH is a measure of the concentration of free hydrogen atoms in a solution. pH值是溶液中遊離氫原子濃度的計(jì)量單位。
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concentration /?k?ns?n?tre???n/ (concentrations)
劍橋詞典
- 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)
[ 不可數(shù)或單數(shù)名詞：沒有複數(shù)形式的名詞 ]the ability to think carefully about something you are doing and nothing else
專注，專心
The noise outside made concentration difficult . 外麪吵得我難以集中注意力。
There was a look of intense concentration on her face . 她臉上帶著全神貫注的表情。
I find that yoga improves my powers of concentration. 我發(fā)現(xiàn)練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. 我發(fā)現(xiàn)自己難以理解老師在講什麼，最後就走神了。
The party's concentration on tax reduction has won them a lot of support . 政府集中推行減稅政策，從而贏得了廣泛的擁護(hù)。
例句
concentration noun (AMOUNT)
[ 可數(shù)名詞：有複數(shù)形式的名詞 or 不可數(shù)或單數(shù)名詞：沒有複數(shù)形式的名詞 ]a large number or amount of something in the same place
集中；聚集；滙集
There is a heavy concentration of troops in the area . 該地區(qū)有重兵駐紥。
[ 可數(shù)名詞：有複數(shù)形式的名詞 or 不可數(shù)或單數(shù)名詞：沒有複數(shù)形式的名詞 ] chemistry specialized
the exact amount of one particular substance that is found in another substance
濃度
a concentration of one part per million 百萬分之一的濃度
High concentrations of toxic elements were found in the polluted areas . 在被汙染地區(qū)發(fā)現(xiàn)了高濃度的有毒元素。 返回 concentration