He assumed an air of concern.

他装出关心的样子。

《牛津词典》

These, then, are the main areas of concern.

总之，这些是人们主要关注的方面。

《牛津词典》

She had no axe to grind and was only acting out of concern for their safety.

她毫无私心，这样做只是出于对他们安全的担心。

《牛津词典》

Before,people with special needs were often prevented from physical activity out of concern that they would hurt themselves or be unable to compete.

VOA: special.2009.08.23

They are creatures of majesty and dignity And they are of importance to, objects of concern for, the god who has created them.

他们是庄严而有尊严的生物,他们也非常重要，是关怀的对象，被那些创造他们的上帝关怀。

耶鲁公开课 - 旧约导论课程节选

The only rider on that being, if they're producing Coca-Cola and you have any kind of concern for your teeth, maybe you shouldn't produce so much anyway.

如果可口可乐是唯一的生产者,并且你狠关心牙齿健康的话,或许你就不应该生产这么多产品了

耶鲁公开课 - 博弈论课程节选

There was a lot of concern about Americans still on the ground potentially being held hostage.

WHITEHOUSE: Press Briefing

But he did say that about almost anything that rises to the level of concern.

NPR: With White House Bogged Down By Scandal, GOP Looks For Boost

And one big area of concern has been the cost and security of our energy.

WHITEHOUSE: America��s Energy Security