我们绝不允许存在这样的情况。

We must never permit anything of the sort.

《新英汉大辞典》

早期的草案中允许存在从bean类产生业务接口的可能性。

The early draft talks about allowing the possibility for the generation of Business Interfaces from the Bean class.

youdao

但是还有很多是我们所看不见的，因为，它们从来未曾允许存在。

But there are other things that we do not see, because, alas, they have never been permitted to come into existence.

youdao

How can an all-powerful, good God allow so much evil to exist and even go unpunished?

怎么可能，一个万能的，善良的上帝会允许邪恶的存在，甚至不受到惩罚呢？

耶鲁公开课 - 旧约导论课程节选

In the presence of this ligand, this molecule, it's open, it allows transport of this ion, when the ligand is gone it doesn't.

配体存在的情况下通道才打开,允许这些离子穿过,配体离开后,这些离子就不能通过了

耶鲁公开课 - 生物医学工程探索课程节选