lasting forever synonym eternal永恒的;永久的;不朽的 undying love 永恒的爱 He declared his undying love for her. 他宣布他对她永恒的爱。 If you did, you would have my undying gratitude. 如果你这样做了,我会永远感激你。
Oxford Collocations DictionaryUndying is used with these nouns:- devotion
- enmity
- gratitude
- …