Concern
v.
关于;与…有关:涉及;牵涉
Please pay attention because this information concerns all of you.
请注意，因为这条消息涉及你们每一个人。
使担心 to worry sb
My father＇s illness concerns us greatly.
父亲的病情使我们很担心。
A good doctor should always concern himself with his patients.
好医生应当时时刻刻关心他的病人。
n.
担心;忧虑 a feeling of worry about sth important
the growing concern about continuing high employment
对居高不下的失业率的日益担忧
关心 a feeling of wanting to protect and help sb/ sth
I appreciate everyone’s concern and help at this difficult time.
在此困难时刻，我很感激每个人对我的关心和帮助。
concerned adj
有关的;有关联的:
be concerned with/in:
Her job is something concerned with computers.
她的工作跟计算机有关。
担忧的;关心的 worried about sth， or caring about sb
be concerned about/for:
Parents are all concerned about/ for their children
父母都关心自己的孩子。
关注的;关切的
be concerned with:
Many of my students were more concerned with their grades than with the knowledge they gained.
我的很多学生更关注成绩，而不是学到的知识。
as far as sb. be concerned就…而言;关于
2011江西
As far as I’ m concerned, riding bicycles is a good solution to air pollution.
就我个人而言，骑自行车是一个解决空气污染的好办法。
concerning prep.关于( regarding/ with regard to):
various questions concerning pollution and environment
有关污染和环境的各种问题