Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
엽육은 식물의 잎에서 광합성을 하는 세포입니다.Yeopyuk-eun sigmul-ui ip-eseo gwanghapseong-eul haneun sepo-imnida.Mesophyll is the tissue in a plant's leaf where photosynthesis occurs.