Rules and regulations, once set up, should not be turned into a dead letter.

规章制度一经订立，不应成为一纸虚文。

《新英汉大辞典》

Britain once set up its consulate in Tengchong in 1899.

英国曾于1899年在腾冲设立领事馆。

youdao

Summers's childhood was not quite like that of the other kids in postwar suburbia….His father once set up a bidding system to distribute TV-watching times.

萨默斯的童年跟其他二战后在郊区长大的孩子不太一样……他父亲曾经弄了个拍卖系统来分配看电视的时间。

youdao

To represent that chain of events, a long line of oversized, brightly painted dominoes has been set up running for one-and-a-half kilometers in an area where the Wall once stood.

VOA: standard.2009.11.09

So it's a really powerful and simple formalism, once we set up what is needed the go through it, right?

因此这是一种很强大而简单的形式,一旦我们定下需要什么,就可以推导出它，对吧？

麻省理工公开课 - 热力学与动力学课程节选

PROFESSOR: So, does anyone have any questions about the set up here, does it make sense what we're looking for the bar to go back once we make some progress.

教授：所以，有人对这套装置,有疑问吗，一旦我们,取得了一些进展,我们看到这个棒又返回来。

麻省理工公开课 - 化学原理课程节选

For Jimmy, the advantage of his system is that once set up, it can be largely left to run itself.

BBC: Inside one of Britain's cannabis factories

Bob, who once set up an AP at home, installs the new one in the office, configures the printer, and problem solved!

FORBES: Your WiFi is (Possibly) No Longer Secure!

Once set up, we will fund a single system meeting the needs of Wales, allowing people to register either an opt-in or opt-out.

BBC: UK officials warned Welsh government over organ donation