(of a disease)spread from one person or organism to another by direct or indirect contact
(疾病)接触传染(性)的,触染(性)的。
(of a person)likely to transmit a disease by contact with other people
(人)可能带有人际传染疾病的;可能带触染原的。
〈喻〉 (情绪,感觉,看法)有感染力的;可能蔓延开的
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her enthusiasm is contagious .她的热情富有感染力。
"late Middle English: from late Latin