flu

/fluː/ n.
标准词条 CET-4CET-6
一句话记住

流行性感冒；流感

释义与例句

n. 流行性感冒；流感
an infectious illness like a very bad cold, often causing fever, aching muscles and weakness
  1. He was off school for a week with flu.
    他因患流感一周没去上学。
  2. The clinic offers free flu vaccinations to older residents.
    这家诊所为年长居民提供免费流感疫苗接种。
展开其余 1 条例句
  1. A sudden fever and severe body aches may indicate flu rather than an ordinary cold.
    突然发烧和严重的全身酸痛可能表明患了流感，而不是普通感冒。

词源与构词

记忆钩子 英式英语通常说 have flu 或 catch flu；普通感冒则通常说 have a cold。influenza 是 flu 的正式完整形式。

词族与关联词

词族（同一词根派生出的不同词性或形式）
  • influenza 流行性感冒
    flu 的完整形式，较正式，常用于医学、公共卫生或新闻语境。
易混词（形近或义近，注意区别）
  • cold 普通感冒；伤风
    cold 通常指普通感冒，常见鼻塞、流涕和喉咙不适；flu 指流感，往往起病更急并伴高热、乏力和肌肉酸痛。具体诊断不能只凭这些症状名称判断。
    I have a blocked nose and a slight cold. 我鼻塞，有点感冒。
常见搭配
  • flu season 流感季节
    Hospitals often see a rise in admissions during the flu season. 流感季节里，医院的住院人数往往会增加。
  • flu vaccine 流感疫苗
    This year's flu vaccine is designed to match the main circulating strains. 今年的流感疫苗旨在匹配主要流行的毒株。
  • a bad bout of flu 一场重流感
    A bad bout of flu left her too weak to work for several days. 一场重流感使她虚弱得好几天无法工作。