indispensable
- adj. 不可缺少的;绝对必要的;责无旁贷的
- n. 不可缺少之物;必不可少的人
英英释意
- 1. not to be dispensed with; essential;
- "foods indispensable to good nutrition"
- 2. absolutely necessary; vitally necessary;
- "essential tools and materials"
- "funds essential to the completion of the project"
- "an indispensable worker"
- 3. unavoidable;
- "the routine but indispensable ceremonies of state"