cut (someone) to the quick

US /kʌt ˈsʌm.wʌn tu ðə kwɪk/
UK /kʌt ˈsʌm.wʌn tu ðə kwɪk/
"cut (someone) to the quick" picture
1.

心を深く傷つける, 痛いところを突く

to deeply hurt someone's feelings

:
Her harsh words cut him to the quick.
彼女の厳しい言葉は彼の心を深く傷つけた
The criticism cut her to the quick, even though she tried not to show it.
批判は、彼女がそれを見せないように努めたにもかかわらず、彼女の心を深く傷つけた