تعريف touch a nerve في الإنجليزية الإنجليزية القاموس.
To make a remark or perform a deed which produces a strong response, especially an emotional response such as anxiety or annoyance, because it calls to mind something which has been a source of concern or embarrassment
The president's supporters . . . are trying to exert greater control over universities, touching a nerve among an increasingly defiant student movement.