concern

affair, business, matter, concern, thing

anxiety, worry, care, concern

名词 concern:

1. something that interests you because it is important or affects you
2. an anxious feeling
   同义词：care, fear
3. a commercial or industrial enterprise and the people who constitute it
   同义词：business, business concern, business organization, business organisation
4. something or someone that causes anxiety; a source of unhappiness
   同义词：worry, headache, vexation
5. a feeling of sympathy for someone or something

动词 concern:

1. have to do with or be relevant to
   同义词：refer, pertain, relate, come to, bear on, touch, touch on
2. be on the mind of
   同义词：interest, occupy, worry

1. This restaurant is a family concern.
   这家饭店是由一家人经营的。
2. These problems concern all of us.
   这些问题影响到我们每一个人。
3. How much money I earn is none of your concern.
   我挣多少钱与你无关。

con.cern

v.（动词）
con.cerned,con.cern.ing,con.cerns
v.tr.（及物动词）
To have to do with or relate to:
涉及：与…有关或相关：
例句：
an article that concerns the plight of homeless people.
关于无家可归者处境的文章

To be of interest or importance to:
关心：有兴趣的或有重要性的：
例句：
This problem concerns all of us.
这个问题攸关我们全部人

To engage the attention of; involve:
参与：集中注意力于…；卷入：
例句：
We concerned ourselves with accomplishing the task at hand.
我们参与了手边的这项任务

To cause anxiety or uneasiness in:
使担忧：引起焦躁或不安：
例句：
The firm`s weak financial posture is starting to concern its stockholders.
这个公司的财政危机已开始困扰股东

v.intr.Obsolete （不及物动词）【废语】
To be of importance.
至关重要
n.（名词）
A matter that relates to or affects one.See Synonyms at affair
利害关系：有关或影响某人的事物参见 affair
Regard for or interest in someone or something.
有关：考虑或关心到某人或某事
A troubled or anxious state of mind arising from solicitude or interest.See Synonyms at anxiety
顾虑：由于焦急或关心而引起的顾虑或担心的状态参见 anxiety
A business establishment or enterprise; a firm.
公司或企业；商号
A contrivance; a gadget.
装置：一个设备；小器具

来源：
Middle English concernen
中古英语 concernen
from Old French concerner
源自 古法语 concerner
from Medieval Latin concernere
源自 中世纪拉丁语 concernere
from Late Latin [to mingle together]
源自 后期拉丁语 [混合]
com- [com-]
com- [前缀，表.结合.]
cernere [to sift] * see krei-
cernere [筛选] *参见 krei-