concern常用搭配：
① concern oneself with / in / about sth. “忙于某事 / 关心某事 / 参与某事”。如：
She concerns herself with social welfare. 她从事社会福利工作。 ② as / so far as sb. / sth. be concerned“就某人 / 某物而言”。如： As far as I’m concerned, I don’t object to your decision. 就我（个人）而言，我不反对你的决定。
③ be concerned in / with sth. “与某物有牵连”。如：
He was concerned with the crime. 他与那起罪案有关。
④ be concerned to do sth.“把做某事视为自己的事情”。如：
He is always concerned to help others.他总是把帮助别人看作是自己的事情。 ⑤ show / express concern about / for “对……表示关心、担心”。如： She showed a great deal of concern for her son’s illness.?????????? 她非常担心她儿子的病情。 ⑥ have a concern in / with... “与……有利害关系”。如：
I have no concern with that company.我与那家公司没什么关系。
⑦ be concerned about... / that... “关心……；担心……”。如： I’m concerned that they may have got lost. 我担心他们可能迷路了。 四、同根词：
① concerned形容词，意为“有关的；担心的”。如：
Concerned parents held a meeting. 忧心忡忡的家长们开了一次会。 ② concerning介词，意为“关于；有关”。如：
Concerning his proposal, there are
pros and cons. 关于他的提案，有赞成和反对两种意见。
