🌜Unit. 77🌛 When you join Skype or Zoom • Vocabulary & Expression 들어오다 to join 로그인하다 to log in 들리다 hear/be heard You can watch the speaking video here👇 https://youtu.be/sOm-wXB2iEE Also, you can save the summary card📸 and check it anytime🌞