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。

关心;关怀;关爱

Without her care and concern, he had no chance at all.

若非她的关心和照顾，他根本没有机会。

He had only gone along out of concern for his two grandsons.

他完全是出于对两个孙子的关心才继续这样做。

关于;涉及

The bulk of the book concerns Sandy's two middle-aged children.

书中主要描写桑迪的两个已到中年的孩子。

Chapter 2 concerns itself with the methodological difficulties.

第二章讲的是研究方法上的难点。

2、presume

（不肯定地）认为，相信，推测

I presume you're here on business.

我想你是来这里出差的。

Dido's told you the whole sad story, I presume?

我想狄多已经把这件伤心事全部告诉你了吧？

冒昧；擅自主张；妄行

They're resentful that outsiders presume to meddle in their affairs.

他们对外人擅自干预他们的事务非常愤慨。

I wouldn't presume to question your judgment.

我不会冒昧地质疑你的判断。