سلسلة تعلّم العامّية الامريكيّة والمصطلحات الإنجليزيّة

Hit a nerve

ضرَبَ على الوَتَرِ الحَسَّاسِ (جابها على الجرح)

To mention something that evokes a strong emotional reaction from someone.

When he mentioned her past, it hit a nerve and she got really defensive.