Related to the "use-it-or-lose-it law" is the "keep-moving principle".

与“要么使用，要么失去”定律相关的是“继续前进原则”。

youdao

It was law or classics – I mean English or classics.

那是法律或者古典文学–我是说，英语或者古典文学。

《柯林斯英汉双解大词典》

The law as it stands is unworkable.

照现在的情形，这条法律是难以执行的。

《牛津词典》

However,he said no federal law could make slavery legal in a territory where the people did not want it.

VOA: special.2009.07.09

That's a fairly common-sense idea, but it's important to define it, and I call that the common-sense law.

十分常识性的概念，但定义它非常重要，所以我叫它“常识定律“

麻省理工公开课 - 热力学与动力学课程节选

but it's not like Law or working in the financial world where you’re gonna get a good salary, so.

但它不会像法学或者在金融界工作一样给你带来很高的薪水，

建筑学专业教授 - SpeakingMax英语口语达人

On the day, 53% of Latvians backed the revised citizenship proposal, enough to make it law.

ECONOMIST: Latvia votes for Europe

In other words, just pick one of the two companies' practices and make it law.

FORBES: Cover Story

He refused to sign the final bill, but Congress had enough votes to make it law.

FORBES: Class Warfare: The Mortal Enemy Of Economic Growth And Jobs