The experience was something he had tried to expunge from his memory.

这种经历是他过去试图从记忆中抹去的。

《柯林斯英汉双解大词典》

Wonder when to expunge that kitchen sponge from your life?

你对何时换掉厨房里的海绵有疑问？

youdao

Once biofilms become attached to the surfaces of medical devices, they are extremely difficult to expunge.

生物膜一旦粘附到医疗器械表面，去除将变的非常困难。

youdao

The side-effect was to expunge first the liberals and then reduce the moderates to passivity.

FORBES: Daniels Out Of Race For GOP Nomination --And Then There Were None

Your attorney should threaten to sue any source of defamatory information about you who refuses to expunge the information from your credit files.

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There was no need for out-right repeal, highfalutin judicial doctrines, multi-pronged tests, emanations and penumbras, over-reaching legislation or regulations to expunge these two amendments.

FORBES: The Tea Party, and Lessons Learned From the Debt Debacle, Part II