eternal

1. ADJ Something that is eternal lasts forever. 永恒的

...the quest for eternal youth. …对永远年轻的追求。

2. eternallyADV 永恒地

She is eternally grateful to her family for their support. 她因家人的支持对他们永存感激之心。

3. ADJ If you describe something as eternal, you mean that it seems to last forever, often because you think it is boring or annoying. 无休止的

In the background was that eternal hum. 背景里是那没完没了的哼哼声。