Chinese

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hundred not have
one; single; a
one; single; a; (before verbs) as soon as, once; (before a noun) entire (family, etc.)
 
to lose; to miss; to fail
trad. (百無一失)
simp. (百无一失)

Pronunciation

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Idiom

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百無一失

  1. no danger of anything going wrong; no risk at all