不灭

In a sentence

• 信念永不灭，正如星辰长存于夜空。

  Faith never extinguishes, just like stars persist in the night sky.

  Here, "不灭" means "not extinguish" and describes the enduring nature of faith and stars.

• 这个记忆在我的脑海中不灭。

  This memory in my mind remains unextinguished.

  In this sentence, "不灭" conveys the idea that the memory does not fade or disappear.

• 英雄的精神是不灭的，激励着我们前行。

  The spirit of heroes is indelible, inspiring us to move forward.

  Here, "不灭" is used metaphorically to imply that the heroic spirit remains alive and enduring.