She was once a political nonentity, but has since won a formidable reputation as a determined campaigner.

她一度在政界无足轻重 但后来因在竞选中意志坚定而赢得盛誉

She was written off then as a political nonentity.

作为政坛上的小人物，那时没人拿她当回事。

I refuse to make my God and Saviour a nonentity.

因为我拒绝让我的上帝和救主变成可有可无。

How could such a nonentity become chairman of the company?

这样的庸才怎么能当公司的董事长？

I spoke to some nonentity at the company who couldn't give me any information.

我跟公司一个小人物谈了一会，他什么信息也未能向我提供。

This part is the fulcrum of the whole system because the system is nonentity without it.

这个部件是整个系统的关键因为缺了它系统就玩不转了。