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Definitions4 characters
wu2 zheng1 bu4 xin4
without proof one can't believe it (idiom)
Usage•••frequent
Pronunciations

As word

1
wu2
without proof one can't believe it (idiom)
2
zheng1
without proof one can't believe it (idiom)
3
bu4
without proof one can't believe it (idiom)
4
xin4
without proof one can't believe it (idiom)