hit a raw nerve
US /hɪt ə rɔ nɜrv/
UK /hɪt ə rɔ nɜrv/

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。