Involvement with/in the community is important to him.参与社区的工作对他来说很重要。

Her involvement with the museum lasted over two decades.她参与博物馆工作前后有二十多年了。

He denied any involvement in the crime.他否认和这桩犯罪活动有任何瓜葛。

No one knew of their romantic involvement. [=no one knew that they had a romantic relationship]没有人知道他们的恋爱关系。