controvert

律师试图反驳对方证人的证词。

The lawyer tried to ___controvert the testimony of the opposing witness.

研究人员试图用实验结果反驳当前的主流理论。

The researchers sought to ___controvert the prevailing theory with experimental results.

这名记者的文章旨在反驳政府对事件的官方说法。

The journalist's article aimed to ___controvert the government's official narrative about the incident.