他竟厚颜无耻地指责记者利用一场悲剧来谋求他们的私利。

He has the gall to accuse reporters of exploiting a tragedy for their own ends.

《柯林斯英汉双解大词典》

他厚颜无耻地奉承她。

He flattered her shamelessly.

《新英汉大辞典》

她厚颜无耻地抵赖证人对她的指控。

She brazened through the accusation from the witness stand.

youdao

Milton is alluding so unashamedly here to Spenser's Errour because, I think, on some level he wants to brand Spenserian allegory as an erroneous literary practice.

弥尔顿是如此厚颜无耻地引用斯潘塞的“错误“因为，在某种程度上他想标榜斯潘塞的寓言,是文学上的一个错误尝试。

耶鲁公开课 - 弥尔顿课程节选

They're offering a critique of the social order, and they even have the audacity to talk about good and evil.

他们批判社会秩序,能够厚颜无耻地评论是非善恶

耶鲁公开课 - 美国内战与重建课程节选