trenchancy

评论家因其文章的锐利而备受尊敬。

The critic is respected for the ___trenchancy of his writing.

她在辩论中的言辞犀利让对手难以招架。

Her ___trenchancy in the debate made it hard for opponents to respond.

这篇社论的锐利之处在于它直指问题的核心。

The editorial's ___trenchancy lies in its direct attack on the core issue.