contagiousKK [kənˋtedʒəs] /kənˈteɪdʒəs/發音con- 共同、一起+tag 觸、碰+-ious 形容詞→互相接觸的展開收合con-字首共同、一起tag字根觸、碰-ious字尾形容詞字面:互相接觸的因互相接觸而傳開 → 有傳染性的、會感染人的形容詞1傳染性的、會傳染的Chickenpox is highly contagious in the first few days.水痘在頭幾天傳染性極強。2有感染力的、會感染人的Her laughter was contagious, and soon everyone joined in.她的笑聲很有感染力,大家很快都跟著笑了。3會蔓延的、會擴散的Panic in the markets is contagious and hard to stop.市場上的恐慌會不斷蔓延,很難止住。