old wine in a new bottle 换汤不换药

“换汤不换药”，中文俗语，意思是比喻名称和外形、画面虽然改变了，但实际内容还是老一套。可以翻译为“old wine in a new bottle”，表示“an existing concept or institution offered as though it were a new one”。

例句：

他们的建议并没有什么新东西，不过是换汤不换药。

There is nothing new in their proposal, just old wine in a new bottle.