tip your hand = show your hand
패를 보이다
blank on (something)
To suddenly forget or be unable to recall something.
I can't believe I totally blanked on her name earlier when I've known her for years!
cursory 엉성한 피상적인
: done very quickly without much attention to details
ex) cursory glance/look
Even a cursory glance at the figures will tell you that sales are down.
언어공부/ENG