infectiousadj.
英 ɪn'fekʃəs | 美 ɪn'fɛkʃəs
中文adj. 传染的；传染性的；易传染的
词根词源
infectious (adj.)"catching, having the quality of spreading from person to person," 1540s of diseases, 1610s of emotions, actions, etc.; see infect + -ous.
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