单词 | look-back program |
释义 | look-back programlook-back programPublic health A study of persons exposed to a disease, from whom specimens–eg, sera, epidemiologic, demographic or other data is examined retrospectively to determine whether they are currently infected |
随便看 |
|
英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。