Chinese

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wrong side out or up; anti- spear
one; single; a
one; single; a; (before verbs) as soon as, once; (before a noun) entire (family, etc.)
 
to hit; to strike; to break
trad. (反戈一擊)
simp. (反戈一击)

Pronunciation

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Idiom

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反戈一擊

  1. to turn one's weapon around and strike; (figuratively) to turn against those one has wrongly sided with