“今非昔比”，汉语成语，是指现在不是过去能比得上的，多形容形势、自然面貌等发生了巨大的变化，可以翻译为“the past cannot be compared with the present或be no longer what it used to be”。

例句：

那个穷山村今非昔比，家家都看上了电视。

The poor mountain village is no longer what it used to be. Every household has a TV set now.