concentrate

concentrate, focus

名词 concentrate:

1. the desired mineral that is left after impurities have been removed from mined ore
   同义词：dressed ore
2. a concentrated form of a foodstuff; the bulk is reduced by removing water
3. a concentrated example

动词 concentrate:

1. make (the solvent of a solution) dense or denser
2. direct one's attention on something
   同义词：focus, center, centre, pore, rivet
3. make central
   同义词：centralize, centralise
4. make more concise
   同义词：digest, condense
5. draw together or meet in one common center
6. compress or concentrate
   同义词：condense, contract
7. be cooked until very little liquid is left
   同义词：boil down, reduce, decoct
8. cook until very little liquid is left
   同义词：reduce, boil down

1. The threat of going bankrupt is very unpleasant but it certainly concentrates the mind.
   即将破产的威胁虽令人极烦恼，但确也能逼迫人开动脑筋。
2. The crowds concentrated round the palace.
   人群汇集在宫殿的四周。
3. I can't concentrate on my work when I'm tired.
   我累了就无法集中精力工作。

con.cen.trate

v.（动词）
con.cen.trat.ed,con.cen.trat.ing,con.cen.trates
v.tr.（及物动词）

To direct or draw toward a common center; focus.
集中：使指向或拖向同一个中心；聚集
To bring into one main body:
集于一体：
例句：
Authority was concentrated in the president.
政权集于总统一身

To make (a solution or mixture) less dilute.
浓缩：浓缩（溶液或混合物）
v.intr.（不及物动词）

To converge toward or meet in a common center.
集中：集中或汇聚于同一个中心
To increase by degree; gather:
聚集：程度上增加；集中：
例句：
.Dusk began to concentrate into full night.(Anthony Hyde)
.薄暮开始凝聚成黑夜.(安东尼·海德)

To direct one`s thoughts or attention:
全神贯注：
例句：
We concentrated on the task before us.
我们专注于眼前的任务

n.Abbr. conc.（名词）缩写 conc.
A product that has been concentrated, especially a food that has been reduced in volume or bulk by the removal of liquid:
浓缩品：经过浓缩后的产物，尤指除水后数量或体积减小的食物：
例句：
pineapple juice concentrate.
菠萝浓缩汁

来源：
From concenter
源自 concenter

【引伸】
con.centra.tive
adj.（形容词）
con.centra.tively
adv.（副词）
con.centra.tor
n.（名词）