intervene
verb- [intransitive]
to become involved in a situation in order to improve or help it 出面；介入 She might have been killed if the neighbours hadn't intervened. 要不是邻居介入，她可能会没命了。 - intervene in something
The President intervened personally in the crisis. 总统亲自出面处理这场危机。 - intervene between A and B
She went over to intervene between the two men. 她走过去为两个男人进行调解。 - intervene against somebody
They would not intervene against the rebels themselves. 他们自己不会插手反对叛乱分子。 - intervene (with somebody) (on behalf of somebody)
attempts to intervene with the authorities on the prisoners' behalf 代表犯人与当局交涉的尝试 - intervene to do something
They intervened to halt the attack. 他们出面阻止了袭击。
Extra ExamplesTopics Discussion and agreementc1Eventually, the army was forced to intervene. 最终军队被迫介入。 Government often intervenes decisively in major professional issues in medicine. 政府经常果断介入医药界重大专业问题。 Intervening militarily will not bring peace. 军事干预不会带来和平。 Local people feel strongly about the proposed development but are virtually powerless to intervene. 当地民众对所提出的开发方案反应强烈，但实际上却无力介入其中。 Nurses should be ready to intervene on behalf of their patients. 为了病人的利益护士应该时刻准备介入。 Our government has no right to intervene. 我们的政府无权干预。 She was reluctant to intervene in what was essentially a private dispute. 她不愿介入这种本质上属于私人性质的争端。 The King intervened personally on behalf of the children. 国王代表孩子们亲自出面处理此事。 The UN refused to intervene. 联合国拒绝干预。 Teachers should learn when to intervene and when to let the students do the talking. 老师应该学会什么时候干预，什么时候让学生说话。 The EU refuses to intervene to control the trade. 欧盟拒绝出手限制贸易。
Oxford Collocations Dictionaryadverb- actively
- directly
- personally
- …
- be forced to
- have to
- be powerless to
- …
- against
- between
- in
- …
- [transitive, intransitive] (+ speech)
to interrupt somebody when they are speaking in order to say something 插嘴；打断（别人的话） - [intransitive]
to happen in a way that delays something or prevents it from happening 阻碍；阻挠；干扰 - [intransitive] (formal)
to exist between two events or places 介于…之间
Word Originlate 16th cent. (in the sense ‘come in as an extraneous factor or thing’): from Latin intervenire, from inter- ‘between’ + venire ‘come’.