irreplaceability是什么意思

n.无法调换,不能取代

1. The unique skills and experience she possesses give her a sense of irreplaceability in the company.
她所具备的独特技能和经验让她在公司中感到不可替代。
2. Cultural heritage is essential and should be protected due to its irreplaceability.
文化遗产因其不可替代性而需要得到保护。

无法替代性；不可替代性