interfere、intervene与meddle这些动词均含“干涉、干预”之意。
interfere : 侧重指无权或未获允许而妨碍、阻扰、干涉他人之事。
- It's their problem and I'm not going to interfere.
那是他们的问题，我不想干预。 - I'd never interfere between (US with) a husband and wife.
我从不会干涉两夫妻间的事。 - Interfering in other people's relationships is always a mistake.
干涉他人谈恋爱从来都是不对的。
intervene : 书面用词，指介入争端，进行调停，也指干涉他人之事。
- The Central Bank intervened in the currency markets today to try to stabilize the exchange rate.
中央银行今天对货币市场进行了干预，试图稳定汇率。 - The minister intervened personally to stop the museum from being closed.
部长亲自干预以阻止博物馆的关闭。
meddle : 指干预与自己毫不相关的事或不属于自己职责范围的事，隐含未经许可或授权。可与interfere换用。（延伸阅读：小词详解 | meddle）
- My sister's always meddling in other people's affairs.
我姐姐总是管别人的闲事。 - People shouldn't meddle with things they don't understand.
自己不懂的事情，就不该去掺和。
