1、concern

忧虑;担心

The group has expressed concern about reports of political violence in Africa.

该团体对有关非洲政治暴力的报道表示关切。

The move follows growing public concern over the spread of the disease.

针对公众对该疾病的不断蔓延日益担忧，从而出台了这一举措。

使担忧;使心烦

The growing number of people seeking refuge in Thailand is beginning to concern Western aid agencies.

到泰国寻求庇护的人日益增多，这开始引起了西方援助机构的不安。

It concerned her that Bess was developing a crush on Max.

贝丝迷上了马克斯，这让她很担心。

令人担忧的事实(或情况)

His concern was that people would know that he was responsible.

他担心大家会知道是他的责任。

Unemployment was the electorate's main concern.

选民关心的主要是失业问题。

2、express

表达;表述

He expressed grave concern at American attitudes.

他对美国的态度表示严重关切。

Sumner would greet us with frowns and grimaces, doing his best to express wordless disapproval.

萨姆纳会冲我们皱眉，做苦脸，竭力表示他无言的反对。

（观点、感情等）体现，不言自明

The anxiety of the separation often expresses itself as anger towards the child for getting lost.

离散带来的焦虑常常体现为对走失的孩子发火。

（用符号等）表示，表达

We can express that equation like that.

我们可以这样表示那个等式。

It is expressed as a percentage.

它是以百分比的形式表示的。

3、get back

恢复（原来的状态）

Then life started to get back to normal.

随后生活又恢复了正常。

I couldn't get back to sleep.

我再也睡不着了。

回到，重提（原来的话题）

It wasn't until we had sat down to eat that we got back to the subject of Tom Halliday.

我们直到坐下来吃饭时才又提起汤姆·哈利迪这个话题。

对…进行报复

The divorce process should not be used as a means to get back at your former partner.

不应该在办理离婚手续上报复以前的伴侣。

I'm going to get you back so badly you'll never to be able to show your face again.

我要狠狠地还以颜色，让你从此无脸见人。