1、back down

放弃（主张、要求、承诺等）；打退堂鼓

The United States had no intention of backing down in its bitter row over farm subsidies.

美国无意就激烈争吵的农产品补贴问题作出让步。

It's too late to back down now.

现在打退堂鼓已经太晚了。

2、intervene

干涉;干预;介入

The situation calmed down when police intervened.

警方干预后，局势平息下来。

The Government is doing nothing to intervene in the crisis.

政府没有采取任何行动对这次危机进行干预。

插话;打岔

Hattie intervened and told me to stop it.

哈蒂打断我，叫我停下来。

I've told you he's not here,Irena intervened.

“我告诉你了他不在这里,”伊雷娜插话说。

干扰;阻挠;打扰

The South African mailboat arrived on Friday mornings unless bad weather intervened.

除非受恶劣天气干扰,南非邮船一般在星期五上午抵达。

I pray that death may not intervene to prevent our meeting with my darling children.

我祈祷死亡不要阻挠我们与我亲爱的孩子们见一面。