The President is deeply concerned about this issue.

总统对这个问题深感担忧。

《牛津词典》

People are concerned about corruption and social inequality.

人们对腐败和社会不公感到担忧。

《柯林斯英汉双解大词典》

We are concerned about the child's welfare.

我们关注那个孩子的福祉。

《牛津词典》

Eighty percent of those questioned said they were concerned about skin cancer and believed it was important to protect themselves.

VOA: special.2010.07.06

So the Romans were only concerned about religions when it looked like those religions were going to cause political problems.

所以罗马人只有在宗教会引起政治问题时,才会插手干涉。

耶鲁公开课 - 新约课程节选

For example, if your son got in a fight with his sister and you're very concerned about him,

例如，如果你的儿子跟他的妹妹打了起来，你对他很是担心，

I need 课堂 - SpeakingMax英语口语达人

But I'm also concerned about your safety and whether you're going to stay with your mom.

CNN: Selling Atlanta's children: What has and hasn't changed

At the same time, however, CEOs, particularly in financial services, have grown concerned about government regulation.

FORBES: The State of the CEO: Things Are Looking Up

But I am concerned about how Obama will handle the crisis in the Middle East.

BBC: Voters' Views: Jessica Ross