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、ultimate

最后的；最终的

He said it is still not possible to predict the ultimate outcome.

他说现在还无法预料最终的结局。

The ultimate aim is to expand the network further.

最终目的是为了进一步拓展该网络。

最根本的；最基础的；最原始的

Plants are the ultimate source of all foodstuffs.

植物是所有食物的最根本来源。

The ultimate cause of what's happened seems to have been the advertising campaign.

出事的最根本原因似乎在于那场广告宣传活动。

极端的；极度的；令人极其不快的

Being removed from his post during operations is the ultimate humiliation for a ship's captain.

在执行任务的过程中被免职，这对一位船长来说是莫大的耻辱。

Treachery was the ultimate sin.

背叛是最不可饶恕的罪孽。