지훈 :palelavender_verifiedx: on Nostr: npub1ck4s5…uf097 듀오링고가 왜요? npub1ck4s5kkvq6f472fadptj4w4htqw69yfrrqwaqecslrvzvfz2unvsmuf097 (npub1ck4…f097) 듀오링고가 왜요?