concern

(Vt) 對...有關係;關心
(N) 關係
concern ～人 with/about/over關心～
【例句】
We're quite concerned about getting a service manual in English that will be easy to read and very clear and useful for our engineers.
我們十分關心是否能有一本英文的維修手冊；那麼，我們的工程師才容易閱讀它，而它對我們的工程師也會清楚及有用。