These policies are way past their sell-by date.

这些政策早成老皇历了。

《牛津词典》

This milk is past its sell-by date.

这牛奶已经过了销售期限。

《牛津词典》

Supermarkets throw away food that is not sold before its sell-by date, while families throw away food that they can't finish eating.

超市会扔掉未在保质期前出售的食物，而家里则会扔掉吃不完的食物。

youdao

They were part of a promotion that had come to an end, or were surplus to demand and risked passing their sell-by-date.

BBC: Tees

But the soldiers, like the political parties, also know that General Chavalit's government has a built-in sell-by date.

ECONOMIST: The relegation of Thailand | The

Regarding the Bank of England, the Item Club said the 2% inflation target had become "a risk to the credibility" of the Bank, and that the target was "long-past its sell-by date".

BBC: Treasury must be more innovative, says Item Club