The client remained obstinate about the delivery date, even after we explained the shipping delays.

即使我們解釋了運送延誤的原因，客戶仍然固執地堅持原本的交貨日期。

Our manager obstinately refused to change the budget plan despite repeated objections from finance.

儘管財務部一再反對，我們經理還是固執地拒絕修改預算計畫。

The obstinate customer kept calling the help desk until someone finally approved his refund.

那位固執的顧客不斷打電話給客服中心，直到終於有人核准他的退款。