ac.quiredadj.(形容词)Of or relating to a disease, condition, or characteristic that is not congenital but develops after birth.后天的:非先天性而由后天发展的疾病、身体状况、症状的,或与其有关的Resulting from exposure to something, such as an antigen or antibiotic.获得的:因暴露于抗原或抗生素而产生的