intervene

/ˌɪntərˈvin/

get involved, so as to alter or hinder an action, or through force or threat of force

中文释义：干预；介入；调停

The government had to intervene to prevent the company from collapsing.

政府不得不干预以防止该公司倒闭。

The UN decided to intervene in the conflict to protect civilians.

联合国决定介入冲突以保护平民。