hv.(to stay up all night),(to pull an all-nighter), all-nighter, overnight work
Mnemonic
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Accepted Answers
밤샘밤샘하다allnighterall nighterall-nighterovernight workstay up all nightpull an all-nighterto pull all-nighterto stay up all nightto pull an allnighterto pull an all nighterto pull an all-nighter