释义
- 1. absolutely necessary
- 2. indispensable
- 3. essential
词语关系
用法说明
常见搭配
Used before nouns (必不可少的条件) or as predicate (这是必不可少的), not usually as standalone complement without 是.
正式程度
Slightly formal; in casual speech, 一定 or 必须 are more common.
例句
显示 1 条水对生命是 必不可少 的。
Water is indispensable for life.
AI 生成的例句会用此图标标注。