“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.