indispensability
n. 不可缺少
近义词：necessity，requirement，vitalness，indispensableness，dispensability，
英英释义
Noun
- the quality possessed by something that you cannot possibly do without
例句
用作名词(n.)
- Prove your indispensability to customers.向客户证明您的产品不可缺少。
- The dream is one personal one part of indispensability.梦想是一个人不可缺少的一部分。