Can you guess the title of this song? This song is really addictive. Especially when you study or take a test, be careful! You may not be able to focus on it because of the song ringing in your ears. Moreover, wouldn’t it be better to be careful before an important OO? Guess what story we will bring tomorrow!! Check your answers on Friday ♪(^∇^*) "다국어&다문화 지식공유/교류 커뮤니티" 운영 IT NGO MULTILINGUAL KNO..