好词典

infectious

UK //ɪnˈfekʃəs//US //ɪnˈfekʃəs//

词源

源自拉丁语 'infectiosus',意为'具有传染性的',由 'inficere'(感染、污染)演变而来。

adjective

❶ 指疾病能够通过接触、空气等途径从一个人传播给另一个人,具有传染性。

“The flu is highly infectious and spreads quickly in crowded places.”

(流感传染性很强,在拥挤的地方传播得很快。)

“Doctors wear masks to avoid catching infectious diseases from patients.”

(医生戴口罩以避免从病人那里感染传染病。)

❶ 形容情绪、笑声等具有感染力,能迅速影响他人情绪或行为。

“Her laughter was so infectious that everyone in the room started smiling.”

(她的笑声很有感染力,房间里的人都开始笑起来。)

“The team's enthusiasm was infectious and motivated the whole company.”

(团队的热情很有感染力,激励了整个公司。)

同义词:contagious, catching, spreading

常见短语

infectious disease — 指能够通过病原体传播的疾病,如流感、结核病等。

“Vaccines are crucial in preventing infectious diseases like measles.”

(疫苗对于预防麻疹等传染病至关重要。)

infectious smile — 形容笑容非常有感染力,能让人不由自主地跟着笑起来。

“The child's infectious smile brightened everyone's day.”

(孩子那富有感染力的笑容让每个人的心情都变好了。)