Irreplaceable memories记忆无可代替
Irreplaceable beauty无可取代的美丽
Irreplaceable Love感情无地换
irreplaceable injury无法弥补的损害
irreplaceable advantages不可替代的优势
irreplaceable set不容易补全的一套书刊
ADJ（形容词） Irreplaceable things are so special that they cannot be replaced if they are lost or destroyed. 不可替代的
...a rare and irreplaceable jewel.
...一种罕见的不可替代的珠宝。