Her dogged pursuit of the client finally won our firm a three-year contract.

她鍥而不捨地爭取那位客戶，終於為公司拿下一份三年合約。

Thanks to the team's dogged efforts, the delayed shipment arrived before the deadline.

多虧團隊的不懈努力，延誤的貨物在期限前送達了。

The customer service rep showed dogged patience while solving the caller's billing problem.

那位客服人員展現出極大的耐心，堅持解決來電者的帳單問題。