Our quarterly report shows a sharp leap in online sales after the holiday campaign.

我們的季報顯示，節慶促銷活動後線上銷售額大幅暴漲。

The airline blamed the leap in ticket prices on rising fuel costs this summer.

航空公司將今年夏天機票價格驟增歸咎於燃料成本上升。

Customer service saw a leap in complaints after the new billing system launched.

新的帳單系統上線後，客服部門收到的客訴暴增。