Concern
v.
關於;與…有關:涉及;牽涉
Please pay attention because this information concerns all of you.
請注意，因為這條消息涉及你們每一個人。
使擔心 to worry sb
My father＇s illness concerns us greatly.
父親的病情使我們很擔心。
A good doctor should always concern himself with his patients.
好醫生應當時時刻刻關心他的病人。
n.
擔心;憂慮 a feeling of worry about sth important
the growing concern about continuing high employment
對居高不下的失業率的日益擔憂
關心 a feeling of wanting to protect and help sb/ sth
I appreciate everyone’s concern and help at this difficult time.
在此困難時刻，我很感激每個人對我的關心和幫助。
concerned adj
有關的;有關聯的:
be concerned with/in:
Her job is something concerned with computers.
她的工作跟計算機有關。
擔憂的;關心的 worried about sth， or caring about sb
be concerned about/for:
Parents are all concerned about/ for their children
父母都關心自己的孩子。
關注的;關切的
be concerned with:
Many of my students were more concerned with their grades than with the knowledge they gained.
我的很多學生更關注成績，而不是學到的知識。
as far as sb. be concerned就…而言;關於
2011江西
As far as I』 m concerned, riding bicycles is a good solution to air pollution.
就我個人而言，騎自行車是一個解決空氣污染的好辦法。
concerning prep.關於( regarding/ with regard to):
various questions concerning pollution and environment
有關污染和環境的各種問題