Your concern over this matter is justified.

The report expressed concern over continuing high unemployment.

报告表达了对失业率居高不下的担忧.

People showed a real concern over the problem.

人们显示了对问题的真正的关心.

The mother's concern over her sick child kept her awake all night.

母亲由于担心自己生病的孩子而整夜没睡.

Her concern over the sick baby kept her awake all night.

她因担心生病的婴儿而整夜都没睡.

Also, very few any concern over what students think about their teachers.

不过, 学生评价老师的机会似乎比老师评价学生的机会要少得多.

It isn't rather good to concern oneself!

而是上心反而不好！

concern oneself with welfare projects

让自己关注福利事业

To smoke opium is to get out of the train while it is still moving. It is to concern oneself with something other than life or death.

吸鸦片实在列车还飞驰时离开它，它让人沉浸在生与死之外的东西里。

Face to face you concern oneself with affairs of state?

对了，你关心国家大事吗？

Relax, go to the concert, unlike many high achievers he need your support.

放松一下，去看陈泽的演唱会吧，他需要你的支持。

We've got to go to the concert.

我们非去那音乐会不可。

We can go to the concert.

我们可以去看演唱会

Can they go to the concert? No, they can't.

他们能去音乐会吗？不能，他们将去（参加）聚会。

I cannot go to the concert but will watch the TV live broadcast.

我去不了这个音乐会，但会收看现场直播。

Will you be free this evening? If so, let's go to the concert together.

你今晚有空吗？如果有，我们一起去听音乐会吧。

I've been longing to go to the concert.

我一直都在盼望去听这场音乐会。

He did go to the concert yesterday.

昨天他确实去了音乐会。

I might go to the concert tonight, but I am not sure about it.

我可能今晚要去看音乐会，但还不确定。（表示对现在不太肯定的推测）

As a music fan, I would like to go to the concert tonight.

我很喜欢听音乐，今晚准备去音乐会。

Joseph did not go to the concert last week. I did not go either.

约瑟夫上周没去音乐会，我也没去。