The manager will rue the day he ignored the client's complaint about late shipments.

經理總有一天會後悔當初忽視了客戶對延遲出貨的抱怨。

Many investors rued selling their shares just before the stock price doubled.

許多投資人懊悔在股價翻倍前就賣掉了持股。

She rued not booking the hotel earlier when prices tripled during the conference.

會議期間房價漲了三倍，她後悔沒有早點訂飯店。