瞭若指掌 liǎo ruò zhǐ zhǎng

see liǎo rú zhǐ zhǎng

Word data

HSK Not in HSK
Frequency Unknown

Characters

Character Meaning
variant of liǎo; to understand clearly; clear-sighted
if; as; like
to point at or to; to indicate or refer to; finger
palm of the hand; to hold in one's hand; to slap