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
농부는 녹비를 사용하여 토양의 질을 개선합니다.nongbuneun nokbireul sayonghayeo toyang-ui jil-eul gaeseonhamnida.The farmer uses green manure to improve the quality of the soil.