naturally acquired immunity自然: nature; natural world获得性免疫: acquired immunity天然获得性免疫: naturally acquired immunity自然获得免疫: naturally acquired immunity被动获得性免疫: passively acquired immunity下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:自然获得性免疫,即可在微信中查询翻译