hit a raw nerve

US /hɪt ə rɔ nɜrv/
UK /hɪt ə rɔ nɜrv/
"hit a raw nerve" picture
1.

觸及痛處, 觸動敏感神經

to upset someone by referring to a sensitive topic

:
His comment about her failed business really hit a raw nerve.
他對她失敗的生意的評論真的觸及了痛處
Be careful what you say; you might hit a raw nerve with him about his divorce.
說話要小心;你可能會觸及他離婚的痛處