I don't know how, what, why, etc.
informal› used to add force to criticisms, expressions of surprise, etc.:
I don't know why you bother.
(Cambridge Advanced Learner's Dictionary & Thesaurus의 “I don't know how, what, why, etc.” 정의 © Cambridge University Press)
오늘의 단어
likeable
A likeable person is pleasant and easy to like.