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Before you start
- 증상
- an observable sign of a problem
- 원인
- cause
- 추정
- a tentative explanation
- 파일
- a file
- 연락처
- contact details
- 확인하다
- check whether information is correct
Intermediate 1 · Lesson 13
Lesson information & display
Planning guide: about 30 min · Progress by understanding and practice, not by the clock.
Completion records the activities you finished. It is not a pronunciation score or a Korean proficiency certificate.