1、concern

憂慮;擔心

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

該團體對有關非洲政治暴力的報道表示關切。

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

針對公眾對該疾病的不斷蔓延日益擔憂，從而出臺了這一舉措。

使擔憂;使心煩

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

到泰國尋求庇護的人日益增多，這開始引起了西方援助機構的不安。

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

貝絲迷上了馬克斯，這讓她很擔心。

令人擔憂的事實(或情況)

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

他擔心大家會知道是他的責任。

Unemployment was the electorate's main concern.

選民關心的主要是失業問題。

2、ultimate

最后的；最終的

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

他說現在還無法預料最終的結局。

The ultimate aim is to expand the network further.

最終目的是為了進一步拓展該網絡。

最根本的；最基礎的；最原始的

Plants are the ultimate source of all foodstuffs.

植物是所有食物的最根本來源。

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場廣告宣傳活動。

極端的；極度的；令人極其不快的

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

在執行任務的過程中被免職，這對一位船長來說是莫大的恥辱。

Treachery was the ultimate sin.

背叛是最不可饒恕的罪孽。