1、proper

適宜的；合適的；適當的；恰當的

Two out of five people lack a proper job.

每五人中有兩人沒有正當的工作。

I always cook a proper evening meal.

我總是把晚餐做得很豐盛。

正確的；準確的；最合適的

The Supreme Court will ensure that the proper procedures have been followed.

最高法院將確保程序的履行合乎規范

He helped to put things in their proper place.

他幫忙把東西放置妥當。

得體的；合乎體統的；正派的

In those days it was not thought entirely proper for a woman to be on the stage.

那個時候，女性登臺表演被認為不太得體。

It is right and proper to do this.

這么做很得體。

2、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。

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。