Definition
To deeply and severely hurt someone's feelings.
深刻刺痛，深刻刺伤
His friend's betrayal cut him to the quick.
他朋友的背叛深深地傷害了他。
Her criticism of his work cut him to the quick.
她對他工作的批評深深地傷害了他。
Her brother's comments about her appearance cut her to the quick.
她哥哥對她外貌的評論深深地傷害了她。