concernvt.
1.(書/電影等)關於，有關(不用被動語態)
This book concerns American history.
concerning prep. 關於
a book concerning American history. 一本關於美國曆史的書
2. 涉及到,關係到; 影響到
A concerns B ( A 關係到B)
óB is concerned with A （B與A有關）
Our diet concerns our health. 我們的飲食關係到我們的健康。
Our health is concerned with ourdiet.
我們的健康與飲食有關係。
The decision concerns your future.
這個決定關係到你的前途。 （這個決定對你的前途很重要。）
concerned adj. 相關的，涉及到的;
all the people (who are) concerned 所有相關人員
I'd like to thank everyone concerned.
To whom it may concern （信頭稱謂語：致相關人員）
as far as sb is concerned ó in sb’s opinion
某人觀點認為...
As far as I am concerned, feng shui doesn’t work at all.
我認為，風水純屬無稽之談。
as far as sth is concerned 就…而言
As far as money is concerned, I always try to bevery careful.
3. concern vt. 使擔心;使不安
sth concerns sb 某事令某人很擔心
ó sb is concerned about sth 某人對某事很擔心
My father's health concerns me.
I am concerned about my father’s health.
concerned adj. （worried） 擔心的，憂慮的
concerned parents 憂慮的家長
concern n. [C/ U] 擔心/憂慮/掛念/關懷(的事情) (+about/for)
That’s not my concern. 那不是我關係/擔心的事情。
show concern for sth 表現出對…的擔心/關心/憂慮
A government spokesman expressed/showed concern for the lives of the hostages.
cause concern 引起憂慮
Air pollution iscausing widespread concern among the public.
空氣汙染引起了公眾的廣泛憂慮。
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