Chinese

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cave; hole as (if); such as
finger; to point; to direct
finger; to point; to direct; to indicate
 
palm (of hand); in charge of
trad. (洞如指掌)
simp. #(洞如指掌)

Pronunciation

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Idiom

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洞如指掌

  1. Synonym of 瞭如指掌了如指掌 (liǎorúzhǐzhǎng)