Our software comes with a perpetual license, so you never need to renew it.

我們的軟體附有永久授權，所以您永遠不需要續約。

The CEO said customer trust should be a perpetual priority for every department.

執行長表示，客戶信任應該是每個部門永遠的優先事項。

Constant flight delays have become a perpetual source of complaints at this airport.

頻繁的班機延誤已成為這座機場永無止境的抱怨來源。