| 释义 |
go back on- 食言，毁约，违约：
He said he would loan money to us, and then went back on his promise. 他说他会借钱给我们，后来他食言了。 - 出卖；背叛：
Some of his friends have gone back on him. 他有几个朋友对他不忠。 - 使失望；失去作用：
Grandfather's eyes are going back on him. 祖父的视力在减退。 - [美国口语]
- 对…不忠实，背叛
- 食言，不遵守，不履行
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