英语词汇“index case”是什么意思，“index case”的读音、用法及例句翻译-乐坝网

词汇	index case
释义	index casen.（名词） The earliest documented case of a disease included in an epidemiologic study.首例病例：传染病学中某种病症最早被记录下来的病例
随便看	Lett letted letter letter letter bomb letterbox letter carrier lettered lettered letterform letterhead letter heading lettering lettering lettering letterings letterman lettermen letter of credence letter of credit letter of intent letter of marque letter of marque letter-perfect letterpress

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