to go back on a promise
[go] back on {one's} promise
[go] back on {one's} deal
[go] back on {one's} pledge
to go back on a promise
01
to fail to keep or fulfill a commitment or assurance made to someone
![to [go] back on a (promise|deal|pledge) definition and meaning](https://cdn.langeek.co/photo/70257/original/?type=jpeg "to [go] back on a (promise|deal|pledge) definition and meaning")
搭配
例子
She went back on her promise to help with the charity event.
