maegyunseol
germ theory
théorie des germes
매균설은 질병의 원인을 설명하는 중요한 이론입니다.
maegyunseoreun jilbyeong-ui wonin-eul seolmyeonghaneun jungyohan il-eonimnida.
Germ theory is an important theory that explains the causes of diseases.
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