spermatozoon造句
theactofbecomingpregnant;fertilizationofanovumbyaspermatozoon.Aporeinthemembranecoveringtheovumofsomeanimalsthroughwhichaspermatozooncanenter.Althoughtheproblemisdonenothavesoserious,butmalespermatozo...
theactofbecomingpregnant;fertilizationofanovumbyaspermatozoon.Aporeinthemembranecoveringtheovumofsomeanimalsthroughwhichaspermatozooncanenter.Althoughtheproblemisdonenothavesoserious,butmalespermatozo...