板上釘釘

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See also: 板上钉钉

Chinese[edit]

 
board; plank; plate
board; plank; plate; slab
 
up; on; on top
up; on; on top; upon; first; previous or last; upper; higher; above; previous; to climb; to go into; to go up
to nail nail
trad. (板上釘釘)
simp. (板上钉钉)
Literally: “to nail nails into a plank”.

Pronunciation[edit]


Idiom[edit]

板上釘釘

  1. sure; certain; without a doubt