This agreement, if not implemented, is a mere scrap of paper.

这个协定如不执行只不过是一纸空文。

《新英汉大辞典》

Why were appropriate actions not implemented then?

为什么当时未采取适当的行动呢？

youdao

Not implemented: The practice requirements are not met.

尚未实现：实践需求没有实现。

youdao

Iran signed a similar deal with Pakistan, last month, although it is not clear if it will be implemented.

VOA: standard.2010.07.23

Now for the hacker edition, if you are feeling up to a bit more of a challenge you'll find that when you run the game, one it's not all that hard to use some ASCII art just make it a little fancier as the teaching fellow who implemented this solution did.

对于升级版，如果你能应付更大的,挑战，你会发现当你在玩这个游戏时，用一些字符画把它做得,比那些教学人员做的更有新意,并不是那么困难。

哈佛公开课 - 计算机科学课程节选

N But it's definitely not one and in fact it wasn't N in the case of Selection Sort because remember the algorithm we implemented on stage last week had me going back and forth across the stage selecting on iteration, the smallest person I can find, the smallest number and then putting them into place.

但在选择排序中，肯定不会是1，也不是,注意，上周我们在这儿,实现的算法中，反复地,迭代进行选择，选出最小的数,然后将其放在合适的位置。

哈佛公开课 - 计算机科学课程节选

The two sides signed a unity agreement in April 2011, but it was not implemented.

BBC: Palestinian groups Hamas and Fatah agree on unity deal

If the Annan plan is not implemented, we will argue for a new and robust U.N.

CNN: STORY HIGHLIGHTS

He added that, while Syria had agreed to Annan's peace plan, the regime has not implemented it.

CNN: Sources: Annan, Clinton to meet about Syria