Our online sales this quarter reached a quadruple of last year's total.

我們本季的線上銷售額達到去年總額的四倍。

The courier charged a quadruple of the standard rate for overnight international shipping.

快遞公司對國際隔夜運送收取標準費率的四倍。

After the merger, the new hire's workload grew to a quadruple of her original tasks.

合併之後,這位新進員工的工作量增加到原本任務的四倍。