As he had a weak case and could not defend himself, he had to resort to sophistry.

他理屈词穷，只好求助于诡辩。

《新英汉大辞典》

Nor is it pure sophistry to think of these genes as part of an extended human genome.

把这些基因看为人类基因组扩展的一部分也不是纯属诡辩。

youdao

These accusations naturally fail to respect the nuances of the view beingattacked – a crude form of sophistry that is often met with thunderousapplause.

这些指责很自然无法尊重被攻击观点的细微差别，是一种经常得到如雷掌声的粗鲁的诡辩术。

youdao

This prompted Labour peer Lord Lea of Crondall to accuse her of "sophistry", and to raise his concern that, in many cases, only interns given financial help by "Mummy and Daddy" could afford to work for free.

BBC: Peer: Parliament should take on more interns

Nor is it pure sophistry to think of these genes as part of an extended human genome.

ECONOMIST: Inhuman genomes

Although pretending to be the product of serious scholarship, it is just another in a series of ideologically driven, anti-technology articles by this author and a handful of others who use flawed methodology and sophistry to arrive at a preordained but fallacious conclusion.

FORBES: How Groundbreaking New Technologies Are Smothered By Anti-Technology Ideologues