Chinese

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one; single; a
one; single; a; (before verbs) as soon as, once; (before a noun) entire (family, etc.)
 
paper dead letter; mere scrap of paper; ineffective law or regulation
trad. (一紙空文) 空文
simp. (一纸空文) 空文

Pronunciation

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Idiom

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一紙空文

  1. a worthless piece of paper