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1·She is now concentrating on a career as a fashion designer.

她现在专注于时装设计这一行。《柯林斯英汉双解大词典》

2·He skirted the hardest issues, concentrating on areas of possible agreement.

他避开最难的问题，而专注于可能达成一致意见的领域。《柯林斯英汉双解大词典》

3·It has trouble concentrating after a brain injury.

脑部受伤后很难集中注意力。

4·Concentrating on my homework I didn't notice they had sat down behind me.

我专心做作业，没有注意到他们已经坐在我后面了。

5·I have trouble concentrating when my roommate talks so loud on her mobile phone.

我的室友对着她的手机大声说话的时候，我很难集中注意力。

6·Maybe when we are really concentrating, we just don't perceive irrelevant information.

也许当我们真正集中注意力的时候，我们就不会注意到无关的信息了。

7·Trying to avoid silly slips by concentrating more could make things a lot worse—even dangerous.

试图集中注意力来避免愚蠢的失误，可能会让事情变得更糟——甚至更危险。

8·One boy said, I'd rather be concentrating on artistic efforts than saving the world or something.

一个男孩说：“我宁愿把精力集中在艺术上，也不愿做拯救世界之类的事情。”

9·That means concentrating on the direction of your life in general and your own academic performance specifically.

这意味着你要专注于你的人生方向，特别是你自己的学习成绩。

10·Since school officials can't do much about the illness, they are concentrating on reducing the number of truancy.

由于学校官员对这种疾病无能为力，他们正集中精力减少旷课人数。

(1)concentrate on集中精力于；全神贯注于

(1)copper concentrate铜精矿

(1)ore concentrate精矿

(1)zinc concentrate锌精矿；精炼锌

(1)protein concentrate浓缩蛋白；蛋白质精料

(1)iron ore concentrate铁精矿，铁精砂