Sales have quintupled over the past few years.

　　過去幾年中銷售量較原來的增加了四倍。

　　She strode past him without a backward glance.

　　她大步從他身邊走過，都沒有回頭瞧他一眼。

　　He was overwhelmed by a longing for times past.

　　他陷入了一種對(duì)過去的渴望而不能自拔。