远离病魔
Keeping Disease at Bay!作者机构：不详
出 版 物：《空中英语教室（高级版．彭蒙惠英语）》 (Studio Classroom)
年 卷 期：2019年第4期
页 面：12-13页
摘 要：Along with soulful eyes, endearingly long necks and warm fuzzy coats, llamas have a far less appreciated feature: They make an array of immune system antibodies so tiny they can fit into crevices on the surface of an invading virus.
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