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
수명측정법은 생물의 수명을 측정하는 데 사용됩니다.sumyeongcheugjeongbeopeun saengmuleui sumyeongeul cheugjeonghaneun de sayongdoemnida.Biometry is used to measure the lifespan of organisms.