What does 无效 mean?
无效
invalid; void
It can also mean
- ineffective; useless
Its characters
- 无 not have
- 效 effect
In a sentence
这张票已经过期，无效了。 This ticket has expired and is no longer valid.
More words with 无 or 效
Keep 无效 for Review
A free account keeps it, and Review brings it back just before you’d forget it.
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