敲釘鑽腳 qiāo dīng zuān jiǎo

to make doubly sure (idiom)

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. to make doubly sure (idiom)

Characters

Character Meaning
to knock; to tap; to strike
nail; variant of dīng; to follow closely
to drill; to get into; to thread one's way through
foot; leg (of an animal or an object); base (of an object)