集中精神的英文：
concentration

Stand up and pay attention.
站起来并集中精神。

He has difficulty in sleeping, inability to concentrate.
他不易入睡，也难集中精神。

I will need to focus on studying for the entrance exams for the next month.
我必须集中精神在下个月的入学考试。

Don't put me off when I'm teying to cencentrate.
别在我集中精神时候打扰我。

"He has difficulty in sleeping, inability to concentrate."
他不易入睡,也难集中精神。

They chatted idly for a few moments, then each buckled down to work
他们闲聊了一会儿;然后各人集中精神干活。

She felt ill.She went to work,however,and tried to concentrate.
她病了.然而她照旧去上班,并且尽力集中精神工作.

I've kept up my judo because it not only keeps me fit but also helps me to concentrate through meditation.
我一直在练柔道，因为它不仅使我保持健康，而也帮助我经由冥思来集中精神。

concentrate troops at a strategic point
集中兵力于战略重点

Samarium europium gadolinium concentrate
GB/T8751-1988钐铕钆富集物

Ansar Concentration (detention) Camp
安萨尔集中（拘留）营

Industrial development is concentrated in the Northeast.
工业发展集中在东北地区。

It consists of a pair of concentric cylinder.
它由一对同轴的圆筒组成。