continuing for ever or for a very long time 永久的；永远的；永恒的 | the promise of eternal life/youth/friendship 永生/永远年轻/友谊长存的希望 |
| She has earned our eternal gratitude. 她获得了我们永远的感激。 |
| | a | seeming to continue for too long 无休止的；没完没了的 | | The silence was eternal. 寂静似乎漫长得没有尽头。 | |
| | b | always having a particular quality （某特性）永远的 | | I’ m the eternal optimist. 我是个永远乐观的人。 | |
| | c | always true or important 永恒的；不朽的 | | eternal truths/values 永恒的真理/价值 | | It’ s the eternal question. 这是个永恒的问题。 | |