dig heels in
頑固地堅持自己的意見或立場
口語·形容固執己見或拒絕妥協
英文釋義
to refuse to change one's opinion or stance; to become stubborn or resolute
例句
My son dug his heels in and refused to do his homework.
典故來源
源自人或動物將腳跟插入地面以抵抗拉力，比喻固執地堅持立場不改變。