We need to concentrate on our core business.

我们需要集中在核心业务上。

《牛津词典》

I am leaving to concentrate on writing fiction.

我要离开去专心写小说。

《柯林斯英汉双解大词典》

He can now concentrate on a project he'd originally put to one side.

他现在能集中做他以前暂时搁置一边的一个项目了。

《柯林斯英汉双解大词典》

These students are taking part in experiments designed to test their knowledge and inspire them to concentrate on science,technology, engineering and math.

VOA: standard.2010.05.10

But by distancing itself from the body, the mind, the soul, is able to better concentrate on the forms.

但是通过脱离肉体的自身因素,心灵和灵魂就可以更好的专注于那些型相

耶鲁公开课 - 死亡课程节选

I'm frustrated that I can't concentrate on my homework.

我没法把注意力集中在我的作业上，真令人泄气。

I'm frustrated 实战 - SpeakingMax英语口语达人

If they concede a goal they must concentrate on not letting in three or four.

BBC: Confidence is key for Scotland

Until then Hunt is hoping to attract sponsorship to enable her to concentrate on archery full-time.

BBC: Nicky Hunt satisfied with Euro archery finish

Portfolio investors in Europe should concentrate on such areas as consumer staples, healthcare and banks.

FORBES: Bargain bourses