echovirusn.
英 'ekəʊvaɪrəs | 美 'ɛko,vaɪrəs
中文n. 艾柯病毒（肠道病毒的一种）
词根词源
echovirus (n.)also ECHO virus, 1955, acronym for enteric cytopathogenic human orphan; "orphan" because when discovered they were not known to cause any disease.
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