Meaning and Usage
"必不可少" is a fixed expression meaning "absolutely necessary" or "indispensable." It emphasizes that something cannot be omitted or done without in a particular context.
Common Contexts
This phrase is often used in formal or semi-formal contexts such as education, work, or discussions about essential resources. It highlights the importance of an element or factor that is crucial for success or survival.
Collocations and Patterns
Nuances
Using "必不可少" conveys a strong necessity, stronger than just "需要" (need). It often implies that without this element, the whole process or system would fail or be incomplete.
Common Confusion
Do not confuse "必不可少" with "必须" (must). "必不可少" focuses on the indispensability of a thing or factor, while "必须" is about obligation or requirement to perform an action.