講解：
concern (about / for / over sth / sb) | ~ (that...)
(尤指許多人共同的)擔心,憂慮:
There is growing concern about violence on television.
人們對電視上充斥暴力內容的憂慮日益加重。

method (of sth / of doing sth) | ~ (for sth / for doing sth)
方法；辦法；措施:
We have the best method for arriving at an accurate prediction of the costs.
我們有準確預測成本的最佳方法。

mind sth
I don't mind the cold—it's the rain I don't like.
冷我不在乎,我是討厭下雨。

expert (at / in / on sth) | ~ (at / in / on doing sth)
專家；行家；能手:
He's an expert at getting his own way.
他在如何達到自己的目的方面很在行。

install sb (as sth)
(常以正式儀式)使就職,任命:
He was installed as President last May.
他于去年五月份正式就任總統。

room (for sb / sth) | ~ (to do sth)
空間；余地:
Is there enough room for me in the car?
車上還有我的位置嗎？